EP3012846B1 - Bobine de rogowski de pcb - Google Patents

Bobine de rogowski de pcb Download PDF

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Publication number
EP3012846B1
EP3012846B1 EP14813582.5A EP14813582A EP3012846B1 EP 3012846 B1 EP3012846 B1 EP 3012846B1 EP 14813582 A EP14813582 A EP 14813582A EP 3012846 B1 EP3012846 B1 EP 3012846B1
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EP
European Patent Office
Prior art keywords
pcb
coil
pcbs
line
external access
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EP14813582.5A
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German (de)
English (en)
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EP3012846A1 (fr
EP3012846A4 (fr
Inventor
Xianwu TANG
Jianliang Zhang
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BEIJING INHAND NETWORKS TECHNOLOGY Co Ltd
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Beijing Inhand Networks Technology Co Ltd
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Priority claimed from CN201310239226.2A external-priority patent/CN104237591B/zh
Priority claimed from CN201310289012.6A external-priority patent/CN104284515B/zh
Priority claimed from CN201310318277.4A external-priority patent/CN104349594B/zh
Priority claimed from CN201310318279.3A external-priority patent/CN104349595B/zh
Application filed by Beijing Inhand Networks Technology Co Ltd filed Critical Beijing Inhand Networks Technology Co Ltd
Publication of EP3012846A1 publication Critical patent/EP3012846A1/fr
Publication of EP3012846A4 publication Critical patent/EP3012846A4/fr
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Publication of EP3012846B1 publication Critical patent/EP3012846B1/fr
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/181—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using coils without a magnetic core, e.g. Rogowski coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/003—Printed circuit coils

Definitions

  • the present disclosure refers to the electronic technical field, especially a PCB (printed circuit board) Rogowski coil.
  • PCB printed circuit board
  • a Rogowski coil is the one formed by uniformly winding a wire on a frame made of a nonmagnetic material with uniform section.
  • the Rogowski coil featured with light weight, wide frequency band and good linearity and no magnetic saturation, has been universally used in a current measuring device. According to whether the Rogowski coil can be opened during measurement, it can be divided into two types, i.e., a closed Rogowski coil and an opened Rogowski coil.
  • the closed Rogowski coil is shown in Fig. 1 .
  • the closed Rogowski coil 100 includes the following parts:
  • a current-carrying conductor 105 is required to pass through the closed Rogowski coil 100 first.
  • the current-carrying conductor 105 is required to pass through the center of the closed Rogowski coil 100 vertically with the centers of the current-carrying conductor 105 and closed Rogowski coil 100 in superposition to ensure measurement accuracy.
  • the current-carrying conductor 105 is surrounded by the closed Rogowski coil 100.
  • Centers of various cycles of wire turns of the ring winding 110 for closed Rogowski coil 100 are in one of the circular magnetic lines.
  • the sectional areas corresponding to various wire turns of the ring winding 110 for closed Rogowski coil 100 are equal.
  • Each wire turn section direction of the ring winding 110 is in line with the normal direction of magnetic lines (i.e., radius direction of the section center is pointing to the center of the current-carrying conductor 105), and is vertical to the tangential direction of the circular magnetic lines. Therefore, the magnetic flux ⁇ i (t) of each ring winding wire turn of the closed Rogowski coil is ensured to be approximately equal with the magnetic flux in direct proportion to the current.
  • ⁇ i t L ⁇ I t
  • the alternating current I(t) to be measured causes the change on magnetic flux within the volume encircled by the ring winding of the closed Rogowski coil 100, which can be converted into voltage signals in proportion to differential of the total magnetic flux by the closed Rogowski coil 100, i.e. the output voltage signal V(t) between output ends 125 and 130 of the closed Rogowski coil 100.
  • V t ⁇ d dt ⁇ i ⁇ i t
  • the output voltage signal V(t) of the closed Rogowski coil is approximately in proportion to the differential of alternating current I(t).
  • V t ⁇ M ⁇ dI t dt
  • the closed Rogowski coil has high accuracy for current measurement and big bandwidth for measuring signal, it achieves the measurement by electric isolation at low cost, and its current withstanding capacity is almost infinite.
  • the closed Rogowski coil is used in accurate current measurement of current-carrying conductor with permanent position, which has application in fields such as relay protection, etc.
  • the ring winding 110 picks up not only the magnetic variation of alternating current I(t) to be measured, but also other AC interfering magnetic fields in the space. For example, when the AC interfering magnetic field vertical to the page direction in Fig. 1 occurs, voltage signal will be generated between the starting point 130 and ending point 120 of the ring winding 110.
  • the traditional closed winding Rogowski coil shown in Fig. 2 , is formed through the winding on framework made of the circular non-magnetic conducting material, including the ring winding and the return wire turn. During the winding, the ring winding is wound after a cycle of return wire turn is placed in the center of the circular framework.
  • the voltage signal generated by the external interfering magnetic field on ring winding of the closed Rogowski coil is approximately equal in size to the voltage signal generated on return wire turn but is opposite in polarity. Therefore, with signal superposition resulting in approximately zero, it reduces the influence of external magnetic field on measurement conducted by the closed Rogowski coil.
  • the traditional closed winding Rogowski coil As the winding of the traditional closed winding Rogowski coil is generally completed by manual work or winding machine, it is hard to achieve uniform winding coil or equal cross section of each coil turn.
  • the traditional closed winding Rogowski coil has the disadvantage of easy disconnection, large capacitance increase error, etc., so the parameter consistency during the industrial production is hard to be guaranteed. As a result, the characteristics of Rogowski coil during current measurement are affected.
  • closed PCB Rogowski coil A new type of closed Rogowski coil, called closed PCB Rogowski coil for short, is made from PCB to overcome the disadvantages of traditional closed Rogowski coil. See the circular closed PCB Rogowski coils 305 and 310 in Fig. 3 .
  • the closed PCB Rogowski coil is adopted with computer aided design (CAD), which means the printed wire (hereafter called wiring) is uniformly arranged on the PCB. See closed PCB Rogowski coil 305 in Fig. 3 .
  • CAD computer aided design
  • a cycle of wire turn on the ring winding of closed PCB Rogowski coil 305 is composed of wiring 315 on the top layer (the top layer of PCB is the PCB surface which faces the reader, and the bottom layer is in opposite direction of the top layer), with plated through hole (hereafter called through hole for short) 320 connecting with the top layer and bottom layer and the wiring 325 on the bottom layer.
  • Each wire turn cycle of the closed PCB Rogowski coil 305 is in radius direction from the center of circular PCB and is uniformly arranged along the circle with the section of the wire turn vertical to PCB.
  • the produced closed PCB Rogowski coil not only overcomes the disadvantages of traditional closed Rogowski coil, but also enjoys optimized sensitivity, measurement accuracy and performance stability as compared to the traditional coil wound by copper wire.
  • the production of closed PCB Rogowski coil is convenient and rapid, because it only needs to draw the wiring diagram on the computer.
  • the closed PCB Rogowski coil is produced by numerical control machine tool to avoid the tedious process of winding, which shortens the coil processing cycle and improves the production efficiency.
  • the variance of the closed PCB Rogowski parameter is small during mass production, and therefore, the performance parameters of coils from the same production batch are basically the same.
  • the ring winding When the closed PCB Rogowski coil 305 is used for current measurement, besides the magnetic variation of alternating current I(t) to be measured, the ring winding also picks up other AC interfering magnetic fields in the space. For example, when the AC interfering magnetic field vertical to page direction in Fig. 3 occurs, interfering voltage signal is generated between the output ends 345 and 350 of the closed PCB Rogowski coil 305.
  • the two series-connected PCBs on the closed PCB Rogowski coil can be adopted to form a combined PCB closed Rogowski coil.
  • Fig. 3 shows the series connection of closed PCB Rogowski coil 305 and closed PCB Rogowski coil 310, which forms the combined PCB closed Rogowski coil 300.
  • the wirings of closed PCB Rogowski coil 310 and closed PCB Rogowski coil 305 are arranged in a mirror image method with the wiring of ring winding in opposite direction.
  • a wire turn cycle of the closed PCB Rogowski coil 310 is composed of wiring 330 on the bottom layer, the through hole 335 and wiring 340 on the top layer.
  • the wire turn cycle of corresponding closed PCB Rogowski coil 305 is composed of wiring 315 on the top layer, the through hole 320 and wiring 325 on the bottom layer.
  • Wiring 330 on the bottom layer and wiring 315 on the top layer are pairs, same as through hole 335 and through hole 320, same as the wiring 340 on the top layer and wiring 325 on the bottom layer. These pairs are identical in position. It is the same with other wire turn cycles.
  • the closed PCB Rogowski coil 305 and closed PCB Rogowski coil 310 are stacked up on the upper and lower layers.
  • the output ends 345 and 350 of the closed PCB Rogowski coil 305 are in the same position completely with the output ends 355 and 360 of the closed PCB Rogowski coil 310.
  • Output end 350 of the closed PCB Rogowski coil 305 is connected with the output end 360 of the closed PCB Rogowski coil 310 to achieve the series connection of closed PCB Rogowski coil 305 and closed PCB Rogowski coil 310.
  • Output end 365 of the combined PCB closed Rogowski coil 300 is connected with the output end 345 of closed Rogowski coil 305, and the output end 370 of combined PCB closed Rogowski coil 300 is connected with the output end 355 of the closed Rogowski coil 310.
  • the interfering voltage signal generated between output ends 345 and 350 of the closed PCB Rogowski coil 305 and the interfering voltage signal generated between the output ends 355 and 360 of the closed PCB Rogowski coil 310 are approximately equal in size and opposite in polarity.
  • the superposition of the two interfering signals is approximately zero. Therefore, when the AC interfering magnetic field vertical to page direction in Fig. 1 occurs, almost no interfering voltage signal will be generated between the output ends 365 and 370 of the combined PCB closed Rogowski coil 300.
  • Fig. 4A and Fig. 4B show the closed PCB Rogowski coil formed by the series connection of two groups of coils in opposite wiring direction on single PCB (see HIGH PRECISION ROGOWSKI COIL, UNITED STATES PATENT, US6313623 Nov.6, 2001 ).
  • FIG. 4A shows two groups of series-connected closed PCB Rogowski coils with opposite winding directions, whose wires are arranged on single PCB in a stagger way
  • Fig. 4B shows two groups of series-connected closed PCB Rogowski coils with opposite winding directions, whose wires are arranged on single PCB in an interdigital way.
  • Fig. 4A and Fig. 4B show a scheme of the closed PCB Rogowski coil formed by the series connection of two groups of coils in opposite wiring direction on single PCB, although by which the interference of external magnetic field can be reduced more effectively, the two coils designed like this still fail to be the same completely, so the influence from the interference of external magnetic field cannot be removed well.
  • the opened Rogowski coil is composed of coils in two halves.
  • the opened Rogowski coil is used for current measurement of the alternating current I(t) to be measured in the current-carrying conductor, firstly the two halves of coils of the opened Rogowski coil are required to be opened to surround the current-carrying conductor, and then two halves of coils of the opened Rogowski coil are required to be closed to place the current-carrying conductor in center of the opened Rogowski coil after being closed.
  • Current-carrying conductor is made to pass through the center of opened Rogowski coil vertically to ensure measurement accuracy with the centers of the current-carrying conductor and opened Rogowski coil in superposition.
  • the current-carrying conductor is surrounded by the opened Rogowski coil.
  • the opened Rogowski coil also has the above-mentioned disadvantages of closed Rogowski coil that the two coils fail to be the same completely, so the influence from the interference of external magnetic field cannot be removed well.
  • the disclosure is aimed at providing a PCB Rogowski coil for being better to remove the influence from the interference of external magnetic field, so as to improve the capability of resisting external interference of the Rogowski coil.
  • a PCB Rogowski coil comprises two groups of series-connected coils in opposite winding direction, i.e. a first coil and a second coil, each of which includes multiple cycles of wire turns, furthermore:
  • the embodiment in the disclosure provides two groups of series-connected PCB Rogowski coils, which are more coincident and featured with opposite winding directions, capable of further reducing the influence of external magnetic field on the measurement and improving the capability of the Rogowski coil for resisting interference of external magnetic field.
  • the embodiment of the disclosure provides a PCB Rogowski coil, comprising two groups of series-connected coils in opposite winding direction, i.e. a first coil and a second coil, each of which includes multiple cycles of wire turns, furthermore:
  • the first coil and the second coil are arranged on single PCB to form a closed Rogowski coil with single PCB; or, they are arranged on multiple laminated PCBs to form an opened Rogowski coil with two PCBs; or they are arranged on they are arranged on two PCBs to form an opened Rogowski coil with two PCBs; or they are arranged on multiple PCB to form an opened Rogowski coils with multiple PCBs, wherein
  • the closed Rogowski coil with multiple PCBs multiple PCBs are laminated; furthermore, multiple cycles of wire turns on the first and second coils are respectively wound on each one of multiple PCBs, and the PCBs with multiple cycles of wire turns are orderly connected through the external access points on the PCBs;
  • two PCBs are designed to semicircular annular PCBs, multiple cycles of wire turns of the first and second coils are wound on the two PCBs, respectively; two PCBs with multiple cycles of wire turns are respectively provided with
  • the minimum space between two cycles of wire turns in the composition unit is equal to the minimum safety space between the PCBs
  • the minimum safety space between the PCBs is related to the technology of PCB, e.g. the minimum safety space between the PCBs is 6mil, or 0.1524mm.
  • closed Rogowski coil with single PCB also can be described as follows:
  • the technical scheme provided by the embodiment in the disclosure provides two groups of series-connected PCB Rogowski coils, which are more coincident and featured with opposite winding directions, capable of further reducing the influence of external magnetic field on the measurement and improving the capability of the Rogowski coil for resisting interference of external magnetic field.
  • the thickness of the PCB can't be increased definitely as the processing technology.
  • the processing cost will largely increase with the increase of the thickness of the PCB.
  • the closed Rogowski coil with single PCB at a certain thickness will cost much higher than the PCB Rogowski coil with the same thickness composed of multiple thin PCBs. Whereas it's better to produce the closed Rogowski coils with multiple PCBs composed of multiple thin PCBs than the closed Rogowski coil with single PCB at the same thickness.
  • the minimum space between two cycles of wire turns in the composition unit is equal to the minimum safety space between the PCBs
  • the minimum safety space between the PCBs is related to the technology of PCB, e.g. the minimum safety space between the PCBs is 6mil, or 0.1524mm.
  • the technical scheme provided by the embodiment in the disclosure provides two groups of series-connected PCB Rogowski coils, which are more coincident and featured with opposite winding directions, capable of further reducing the influence of external magnetic field on the measurement and improving the capability of the Rogowski coil for resisting interference of external magnetic field.
  • the third one of multiple optional modes above is: opened Rogowski coil with two PCBs:
  • the minimum space between two cycles of wire turns in the composition unit is equal to the minimum safety space between the PCBs
  • the minimum safety space between the PCBs is related to the technology of PCB, e.g. the minimum safety space between the PCBs is 6mil, or 0.1524mm.
  • the technical scheme provided by the embodiment in the disclosure provides two groups of series-connected PCB Rogowski coils, which are more coincident and featured with opposite winding directions, capable of further reducing the influence of external magnetic field on the measurement and improving the capability of the Rogowski coil for resisting interference of external magnetic field.
  • the sectional area of the ring winding of the PCB Rogowski coil is in direct proportion to the thickness of the PCB, the thicker the latter is, the larger the former will be, and the higher the detection sensitivity of the PCB Rogowski coil will be.
  • a thicker PCB can be adopted to improve the detection sensitivity of the PCB Rogowski coil.
  • the thickness of the PCB can't be increased definitely as the processing technology.
  • the processing cost will largely increase with the increase of the thickness of the PCB.
  • the Rogowski coil with single PCB at a certain thickness will cost much higher than the PCB Rogowski coil with the same thickness composed of multiple thin PCBs. Whereas it's better to produce the Rogowski coils with multiple PCBs composed of multiple thin PCBs than that with a single PCB.
  • opened Rogowski coil with multiple PCBs also can be described as follows:
  • the minimum space between two cycles of wire turns in the composition unit is equal to the minimum safety space between the PCBs
  • the minimum safety space between the PCBs is related to the technology of PCB, e.g. the minimum safety space between the PCBs is 6mil, or 0.1524mm.
  • the technical scheme provided by the embodiment in the disclosure provides two groups of series-connected PCB Rogowski coils, which are more coincident and featured with opposite winding directions, capable of further reducing the influence of external magnetic field on the measurement and improving the capability of the PCB Rogowski coil for resisting interference of external magnetic field.
  • specific implementation mode for different types of Rogowski coils is described in detail below.
  • Closed Rogowski coil with single PCB capable of resisting interference of external magnetic field comprises two groups of series-connected coils in opposite winding direction, i.e. a first coil and a second coil, both of which are located on single PCB and are connected in series to form a closed Rogowski coil with single PCB.
  • the closed Rogowski coil with single PCB capable of resisting interference of external magnetic field is specifically composed of multiple identical composition units in series connection, each of which comprises one cycle of wire turn on the first coil and one cycle of wire turn on the second coil, and the two cycles of wire turns are adjacent closely. That two cycles of wire turns are adjacent closely can be understood as: the minimum space between two cycles of wire turns is equal to the minimum safety space between the PCBs, the minimum safety space between the PCBs is related to the technology of PCB, e.g. the minimum safety space between the PCBs is 6mil, or 0.1524mm.
  • One cycle of wire turn on the first coil of each composition unit on the closed Rogowski coil with single PCB comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the first coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes among different layers by surrounding.
  • the wiring path on the top layer is overlapped with that on the bottom layer.
  • the section of winding lines composed of the wirings on the top layer and bottom layer and two through holes by surrounding is similar to a rectangle.
  • One cycle of wire turn on the first coil of each composition unit on the closed Rogowski coil with single PCB comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the first coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes among different layers by surrounding.
  • the closed Rogowski coil with single PCB capable of resisting interference of external magnetic field is provided with two signal output ends, i.e. the first signal output end and the second signal output end, wherein that connected with the first signal output end is the incoming line of the wire turn on the first coil of the first composition unit, and that connected with the second signal output end is the incoming line of the wire turn on the second coil of the first composition unit. That adjacent with the first composition unit is the second composition unit, the rest can be done in the same manner till the last composition unit is present.
  • the outgoing line of the wire turn on the first coil of the last composition unit is directly connected with the outgoing line of the wire turn on the second coil of the last composition to realize the series connection between the first coil and the second coil of the closed Rogowski coil with single PCB.
  • the section composed of the wire turns of the first coil on each composition unit by surrounding is vertical to the surface of PCB, the section composed of the winding lines by surrounding is located on the cross section of PCB, and the wiring paths of the winding lines are overlapped in the direction vertical to the surface of PCB.
  • the section composed of the winding lines at the wire turn of the second coil on each composition unit by surrounding is vertical to the surface of PCB, the section composed of the winding lines by surrounding is located on the cross section of PCB, and the wiring paths of the winding lines are overlapped in the direction vertical to the surface of PCB.
  • the centers of all the composition units are uniformly distributed on the magnetic line of magnetic field for generating current to be measured.
  • the direction of section composed of the winding lines on the wire turns of the first coils on all the composition units by surrounding is approximate to the normal direction of the magnetic line passing through the section center of the winding line, and the section composed of the winding lines on the wire turns of the first coils is approximately vertical to the tangential direction of the magnetic line passing through the section center of the winding line (namely strength direction of magnetic field).
  • the direction of section composed of the winding lines on the wire turns of the second coils on all the composition units by surrounding is approximate to the normal direction of the magnetic line passing through the section center of the winding line, and the section composed of the winding lines on the wire turns of the second coils is approximately vertical to the tangential direction of the magnetic line passing through the section center of the winding line (namely strength direction of magnetic field).
  • the PCB is a dual-sided PCB, wherein the first coil and the second coil are located on the upper and lower surfaces of the PCB, so the closed Rogowski coil with single PCB can be called a closed Rogowski coil with single dual-sided PCB.
  • Closed Rogowski coil with single dual-sided PCB capable of resisting interference of external magnetic field comprises two groups of series-connected coils in opposite winding direction, i.e. a first coil and a second coil, both of which are located on single dual-sided PCB and are connected in series to form a closed Rogowski coil with single dual-sided PCB.
  • the closed Rogowski coil with single dual-sided PCB capable of resisting interference of external magnetic field is specifically composed of multiple identical composition units in series connection, each of which comprises one cycle of wire turn on the first coil and one cycle of wire turn on the second coil, and the two cycles of wire turns are adjacent closely. That two cycles of wire turns are adjacent closely can be understood as: the minimum space between two cycles of wire turns is equal to the minimum safety space between the PCBs, the minimum safety space between the PCBs is related to the technology of PCB, e.g. the minimum safety space between the PCBs is 6mil, or 0.1524mm.
  • One cycle of wire turn on the first coil of each composition unit comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the first coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes between the top layer and the bottom layer by surrounding.
  • One cycle of wire turn on the second coil of each composition unit on closed Rogowski coil with single dual-sided PCB comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the second coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes between the top layer and the bottom layer by surrounding.
  • the closed Rogowski coil with single dual-sided PCB capable of resisting interference of external magnetic field is provided with two signal output ends, i.e. the first signal output end and the second signal output end, wherein that connected with the first signal output end is the incoming line of the wire turn on the first coil of the first composition unit, and that connected with the second signal output end is the incoming line of the wire turn on the second coil of the first composition unit. That adjacent with the first composition unit is the second composition unit, the rest can be done in the same manner till the last composition unit is present.
  • the outgoing line of the wire turn on the first coil of the last composition unit is directly connected with the outgoing line of the wire turn on the second coil of the last composition to realize the series connection between the first coil and the second coil of closed Rogowski coil with single dual-sided PCB.
  • the section composed of the wire turns of the first coil on each composition unit by surrounding is vertical to the surface of dual-sided PCB, the section composed of the winding lines by surrounding is located on the cross section of PCB, and the wiring paths of the winding lines are overlapped in the direction vertical to the surface of dual-sided PCB.
  • the section composed of the winding lines at the wire turn of the second coil on each composition unit by surrounding is vertical to the surface of dual-sided PCB, the section composed of the winding lines by surrounding is located on the cross section of dual-sided PCB, and the wiring paths of the winding lines are overlapped in the direction vertical to the surface of dual-sided PCB.
  • the centers of all the composition units are uniformly distributed on the magnetic line of magnetic field for generating current to be measured.
  • the direction of section composed of the winding lines on the wire turns of the first coils on all the composition units by surrounding is approximate to the normal direction of the magnetic line passing through the section center of the winding line, and the section composed of the winding lines on the wire turns of the first coils is approximately vertical to the tangential direction of the magnetic line passing through the section center of the winding line (namely strength direction of magnetic field).
  • the direction of section composed of the winding lines on the wire turns of the second coils on all the composition units by surrounding is approximate to the normal direction of the magnetic line passing through the section center of the winding line, and the section composed of the winding lines on the wire turns of the second coils is approximately vertical to the tangential direction of the magnetic line passing through the section center of the winding line (namely strength direction of magnetic field).
  • Fig. 5 shows a specific embodiment of the disclosure, or a closed Rogowski coil with single dual-sided PCB 500 capable of resisting interference of external magnetic field, which is suitable for measuring the current flowing on a current-carrying conductor 105 vertically passing through the center of closed PCB Rogowski coil 500, and the magnetic line of AC magnetic field generated by the current is a circle of taking the center of closed PCB Rogowski coil 500 as the center of a circle.
  • Fig. 5A shows a laminating layer on the top layer and bottom layer of the closed Rogowski coil with single dual-sided PCB
  • Fig. 5B shows a top layer of the closed Rogowski coil with single dual-sided PCB
  • Fig. 5C shows a bottom layer of the closed Rogowski coil with single dual-sided PCB.
  • the closed Rogowski coil with single dual-sided PCB 500 comprises two groups of coils 501 and 502 with opposite winding directions, wherein the coil 501 is connected with the coil 502 in series to form a closed PCB Rogowski coil 500.
  • the closed Rogowski coil with single dual-sided PCB 500 is composed of multiple identical composition units in series connection, and Fig. 5A shows a composition unit 503. As shown in Fig. 5A , Fig. 5B and Fig. 5C , the center of composition unit 503 and the centers of other composition units are located on a circular magnetic line generated by the current flowing on the current-carrying conductor 105, and various composition units are uniformly distributed on the circular magnetic line.
  • Each composition unit comprises one cycle of wire turn of two groups of coils with opposite winding directions.
  • the composition unit 503 comprises a cycle of wire turn 504 on the coil 501 and a cycle of wire turn 505 on the coil 502, and the two cycles of wire turns are adjacent closely.
  • Fig. 5B shows a top layer part 506 of the wire turn 504 and a top layer part 507 of the wire turn 505 on the composition unit 503.
  • the top layer part 506 of the wire turn 504 is adjacent with the top layer part 507 of the wire turn 506 closely
  • Fig. 5C shows a bottom layer part 508 of the wire turn 504 and a bottom layer part 509 of the wire turn 505 on the composition unit 503.
  • the bottom layer part 508 of the wire turn 504 is adjacent with the bottom layer part 509 of the wire turn 506 closely.
  • Fig. 6 shows local details of the closed Rogowski coil with single dual-sided PCB 500.
  • Fig. 6A shows a laminating layer on the local top layer and bottom layer of the closed Rogowski coil with single dual-sided PCB 500
  • Fig. 6B shows a local top layer of the closed Rogowski coil with single dual-sided PCB 500
  • Fig. 6C shows a local bottom layer of the closed Rogowski coil with single dual-sided PCB 500.
  • the laminating layer on the top layer and bottom layer of a composition unit 600 on the closed PCB Rogowski coil 500 comprises a laminating layer part of a cycle of wire turn 618 on the coil 620 and a laminating layer part of a cycle of wire turn 619 on the other group of coil 621 with opposite winding direction.
  • the laminating layer part of a cycle of wire turn 618 on the coil 620 comprises an incoming line 601, a wiring line 607, a through hole 609, a through hole 604 and an outgoing line 606.
  • the laminating layer part of a cycle of wire turn 619 on the coil 621 comprises an incoming line 602, a wiring line 608, a through hole 610, a through hole 603 and an outgoing line 605.
  • the top layer of a composition unit 600 on the closed PCB Rogowski coil 500 comprises a top layer part of a cycle of wire turn 618 on the coil 620 and a top layer part of a cycle of wire turn 619 on the other group of coil 621 with opposite winding direction.
  • the top layer part of a cycle of wire turn 618 on the coil 620 comprises a through hole 609, a wiring line 616 and a through hole 604.
  • the top layer part of a cycle of wire turn 619 on the coil 621 comprises an incoming line 602, a wiring line 617, a through hole 610, a through hole 603 and an outgoing line 605.
  • the bottom layer of a composition unit 600 on the closed PCB Rogowski coil 500 comprises a bottom layer part of a cycle of wire turn 618 on the coil 620 and a bottom layer part of a cycle of wire turn 619 on the other group of coil 621 with opposite winding direction.
  • the bottom layer part of a cycle of wire turn 618 on the coil 620 comprises an incoming line 601, a wiring line 614, a through hole 609, a through hole 604 and an outgoing line 606.
  • the bottom layer part of a cycle of wire turn 619 on the coil 621 comprises a through hole 610, a wiring line 615 and a through hole 603.
  • the rectangular winding part of a cycle of wire turn 618 on the coil 620 of the closed PCB Rogowski coil 500 is composed of a wiring line 616, a through hole 609, a wiring line 614 and a through hole 604, wherein the wiring line 616 on the top layer of the rectangular winding part and the wiring line 614 on the bottom layer are overlapped in the direction vertical to the surface of PCB.
  • the rectangular winding part of a cycle of wire turn 619 on the other group of coil 621 with opposite winding direction is composed of a wiring line 615, a through hole 610, a wiring line 617 and a through hole 603, wherein the wiring line 615 on the bottom layer of the rectangular winding part and the wiring line 617 on the top layer are overlapped in the direction vertical to the surface of PCB.
  • the rectangular winding section directions of a cycle of wire turn 618 and a cycle of wire turn 619 on the first composition unit 600 of the closed PCB Rogowski coil 500 are along the radial direction of the centers of closed PCB Rogowski coil 500 and winding section, or the magnetic line with the centers of various composition units on the closed PCB Rogowski coil 500 is in the normal direction in the center of the winding section.
  • the rectangular winding section directions of a cycle of wire turn 618 and a cycle of wire turn 619 on the first composition unit 600 of the closed PCB Rogowski coil 500 are vertical to the radial direction of the centers of closed PCB Rogowski coil 500 and winding section, or the magnetic line with the centers of various composition units on the closed PCB Rogowski coil 500 is in the tangential direction in the center of the winding section.
  • the first composition unit of the closed PCB Rogowski coil 500 is provided with an external access point 611, which is connected with the incoming line of the first wire turn on the coil 620 of the first composition unit, and the first composition unit of the closed PCB Rogowski coil 500 is provided with an external access point 612, which is connected with the incoming line of the first wire turn on the other group of coil 621 with opposite winding direction of the first composition unit.
  • the external access points 611 and 612 are taken as two signal output ends of the closed PCB Rogowski coil 500.
  • two outgoing lines between the through hole 622 of the coil 620 and the through hole 623 of the other group of coil 621 on the last composition unit 613 of the closed PCB Rogowski coil 500 are directly connected through a wiring line 624 to realize the series connection between two groups of coils 620 and 621 with opposite winding directions on the closed PCB Rogowski coil 500.
  • the closed Rogowski coil with multiple PCBs capable of resisting interference of external magnetic field comprises two groups of series-connected coils in opposite winding direction, i.e. a first coil and a second coil.
  • the closed Rogowski coil with multiple PCBs capable of resisting interference of external magnetic field is specifically composed of N PCBs by laminating.
  • the closed Rogowski coil with multiple PCBs is provided with two signal output ends, i.e. the first signal output end and the second signal output end.
  • the PCB with the first and second signal output ends is the 1 st PCB, the PCB adjacent with the 1 st PCB is the 2 nd PCB, if N ⁇ 3, the rest can be done in the same manner, it is the 3 rd PCB till the N th PCB is present.
  • the N th PCB is provided with two external access points, i.e. the first external access point and the second external access point, wherein the first external access point is the starting point of the first coil on the N th PCB, and the second external access point is the starting point of the second coil on the N th PCB.
  • the first external access point on the 1 st PCB is the first signal output end, and the second external access point on the 1 st PCB is the second signal output end;
  • the third external access point on the upper one of the adjacent and laminated PCBs is connected with the first external access point on the lower one to realize the series connection between the first coil part on the upper PCB and the first coil part on the lower PCB to form a complete first coil.
  • the fourth external access point on the upper one of the adjacent and laminated PCBs is connected with the second external access point on the lower one to realize the series connection between the second coil part on the upper PCB and the second coil part on the lower PCB to form a complete second coil.
  • the first and second coils are directly connected in series on the N th PCB to form the closed Rogowski coil with multiple PCBs capable of resisting interference of external magnetic field.
  • Each PCB from the 1 st PCB to the N th PCB is composed of multiple identical composition units in series connection, each of which comprises the cycles of wire turns of the first coil and the second coil, and the two cycles of wire turns are adjacent closely. That two cycles of wire turns are adjacent closely can be understood as: the minimum space between two cycles of wire turns is equal to the minimum safety space between the PCBs, the minimum safety space between the PCBs is related to the technology of PCB, e.g. the minimum safety space between the PCBs is 6mil, or 0.1524mm.
  • One cycle of wire turn on the first coil of each composition unit on each PCB of the closed Rogowski coil with multiple PCBs comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the first coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes among different layers by surrounding.
  • One cycle of wire turn on the second coil of each composition unit on each PCB of the closed Rogowski coil with multiple PCBs comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the second coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes among different layers by surrounding.
  • the wiring path on the top layer is overlapped with that on the bottom layer.
  • the section of winding lines composed of the wirings on the top layer and bottom layer and two through holes by surrounding is similar to a rectangle.
  • the incoming line at one cycle of wire turn on the first coil of the first composition unit from the 1 st PCB to the N th PCB is connected with the first external access point from the 1 st PCB to the N th PCB
  • the incoming line at one cycle of wire turn on the second coil of the first composition unit from the 1 st PCB to the N th PCB is connected with the second external access point from the 1 st PCB to the N th PCB.
  • the outgoing line at one cycle of wire turn on the first coil of the last composition unit from the 1 st PCB to the (N-1) th PCB is connected with the third external access point from the 1 st PCB to the (N-1) th PCB
  • the outgoing line at one cycle of wire turn on the second coil of the last composition unit from the 1 st PCB to the (N-1) th PCB is connected with the fourth external access point from the 1 st PCB to the (N-1) th PCB.
  • the outgoing line at one cycle of wire turn on the first coil of the last composition unit on the N th PCB is directly connected with the outgoing line at one cycle of wire turn on the second coil of the last composition unit on the N th PCB to realize the series connection between the first coil and the second coil on the N th PCB.
  • the section composed of two cycles of wire turns on each composition unit by surrounding is vertical to the surface of PCB, the section composed of the winding lines by surrounding is located on the cross section of PCB, and the wiring paths of the winding lines are overlapped in the direction vertical to the surface of PCB.
  • the centers of the composition units on each PCB are uniformly distributed on a magnetic line of magnetic field for generating current to be measured, the direction of the section surrounded by the winding lines at two cycles of wire turns of all the composition units is close to the normal direction of the magnetic line passing through the section center of the winding line, and the section surrounded by the winding lines at two cycles of wire turns of all the composition units is approximately vertical to the tangential direction (strength direction of the magnetic field) of the magnetic line passing through the section center of the winding line.
  • the PCB is a dual-sided PCB, wherein the first coil and the second coil are located on the upper and lower surfaces of the PCB, so the closed Rogowski coil with multiple PCBs can be called a closed Rogowski coil with multiple dual-sided PCBs.
  • the closed Rogowski coil with multiple dual-sided PCBs capable of resisting interference of external magnetic field comprises two groups of series-connected coils in opposite winding direction, i.e. a first coil and a second coil.
  • the closed Rogowski coil with multiple dual-sided PCBs capable of resisting interference of external magnetic field is specifically composed of N dual-sided PCBs by laminating.
  • the closed Rogowski coil with multiple dual-sided PCBs is provided with two signal output ends, i.e. the first signal output end and the second signal output end.
  • the PCB with the first and second signal output ends is the 1 st PCB, the PCB adjacent with the 1 st PCB is the 2 nd PCB, if N ⁇ 3, the rest can be done in the same manner, it is the 3 rd PCB till the N th PCB is present.
  • the N th PCB is provided with two external access points, i.e. the first external access point and the second external access point, wherein the first external access point is the starting point of the first coil on the N th PCB, and the second external access point is the starting point of the second coil on the N th PCB.
  • the first external access point on the 1 st PCB is the first signal output end, and the second external access point on the 1 st PCB is the second signal output end;
  • the third external access point on the upper one of the adjacent and laminated PCBs is connected with the first external access point on the lower one to realize the series connection between the first coil part on the upper PCB and the first coil part on the lower PCB to form a complete first coil.
  • the fourth external access point on the upper one of the adjacent and laminated PCBs is connected with the second external access point on the lower one to realize the series connection between the second coil part on the upper PCB and the second coil part on the lower PCB to form a complete second coil.
  • the first and second coils are directly connected in series on the N th PCB to form the closed Rogowski coil with multiple dual-sided PCBs capable of resisting interference of external magnetic field.
  • Each dual-sided PCB from the 1 st PCB to the N th PCB is composed of multiple identical composition units in series connection, each of which comprises the cycles of wire turns of the first coil and the second coil, and the two cycles of wire turns are adjacent closely. That two cycles of wire turns are adjacent closely can be understood as: the minimum space between two cycles of wire turns is equal to the minimum safety space between the PCBs, the minimum safety space between the PCBs is related to the technology of PCB, e.g. the minimum safety space between the PCBs is 6mil, or 0.1524mm.
  • One cycle of wire turn on the first coil of each composition unit on each dual-sided PCB of the closed Rogowski coil with multiple dual-sided PCBs comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the first coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes between the top layer and the bottom layer by surrounding.
  • One cycle of wire turn on the second coil of each composition unit on each dual-sided PCB of the closed Rogowski coil with multiple dual-sided PCBs comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the second coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes between the top layer and the bottom layer by surrounding. Specifically, the wiring path on the top layer is overlapped with that on the bottom layer.
  • the section of winding lines composed of the wirings on the top layer and bottom layer and two through holes by surrounding is similar to a rectangle.
  • the incoming line at one cycle of wire turn on the first coil of the first composition unit from the 1 st PCB to the N th PCB is connected with the first external access point from the 1 st PCB to the N th PCB
  • the incoming line at one cycle of wire turn on the second coil of the first composition unit from the 1 st PCB to the N th PCB is connected with the second external access point from the 1 st PCB to the N th PCB.
  • the outgoing line at one cycle of wire turn on the first coil of the last composition unit from the 1 st PCB to the (N-1) th PCB is connected with the third external access point from the 1 st PCB to the (N-1) th PCB
  • the outgoing line at one cycle of wire turn on the second coil of the last composition unit from the 1 st PCB to the (N-1) th PCB is connected with the fourth external access point from the 1 st PCB to the (N-1) th PCB.
  • the outgoing line at one cycle of wire turn on the first coil of the last composition unit on the N th PCB is directly connected with the outgoing line at one cycle of wire turn on the second coil of the last composition unit on the N th PCB to realize the series connection between the first coil and the second coil on the N th PCB.
  • the section composed of two cycles of wire turns on each composition unit by surrounding is vertical to the surface of dual-sided PCB, the section composed of the winding lines by surrounding is located on the cross section of dual-sided PCB, and the wiring paths of the winding lines are overlapped in the direction vertical to the surface of PCB.
  • the centers of the composition units on each dual-sided PCB are uniformly distributed on a magnetic line of magnetic field for generating current to be measured, the direction of the section surrounded by the winding lines at two cycles of wire turns of all the composition units is close to the normal direction of the magnetic line passing through the section center of the winding line, and the section surrounded by the winding lines at two cycles of wire turns of all the composition units is approximately vertical to the tangential direction (strength direction of the magnetic field) of the magnetic line passing through the section center of the winding line.
  • Fig. 7 shows dual-sided PCBs from the 1 st PCB to the (N-1) th PCB in the closed Rogowski coil with N dual-sided PCBs in the embodiment of the disclosure
  • Fig. 7A shows the laminating layer of the top layer and bottom layer of the dual-sided PCBs from the 1 st PCB to the (N-1) th PCB in the closed Rogowski coil with N dual-sided PCBs
  • Fig. 7B shows the top layers of the dual-sided PCBs from the 1 st PCB to the (N-1) th PCB in the closed Rogowski coil with N dual-sided PCBs
  • Fig. 7C shows bottom layers of the dual-sided PCBs from the 1 st PCB to the (N-1) th PCB in the closed Rogowski coil with N dual-sided PCBs.
  • the coil 500 on the dual-sided PCBs from the 1 st PCB to the (N-1) th PCB in the closed Rogowski coil with N dual-sided PCBs comprises two groups of coils 501 and 502 with opposite winding directions, which represent one part of the first coil and second coil on the closed Rogowski coil with N dual-sided PCBs, respectively.
  • the coil 500 is provided with four external access points, i.e. 503, 504, 505, 506.
  • the external access point 503 is taken as the starting point of the coil 501
  • the external access point 505 is taken as the ending point of the coil 501
  • the external access point 504 is taken as the starting point of the coil 502
  • the external access point 506 is taken as the ending point of the coil 502.
  • the external access points 503 and 504 are also taken as the signal output ends of the closed Rogowski coil with N dual-sided PCBs at the same time.
  • the external access point 505 is connected with the first coil part on the lower dual-sided PCB, and the external access point 506 is connected with the second coil part thereon.
  • the coil 500 is composed of multiple identical composition units in series connection, and Fig. 7A shows a composition unit 507. As shown in Fig. 7A , Fig. 7B and Fig. 7C , the center of composition unit 507 and the centers of other composition units are located on a circular magnetic line generated by the current flowing on the current-carrying conductor 105, and various composition units are uniformly distributed on the circular magnetic line.
  • Each composition unit comprises one cycle of wire turn of two groups of coils with opposite winding directions.
  • the composition unit 507 comprises a cycle of wire turn 508 on the coil 501 and a cycle of wire turn 509 on the coil 502, and the two cycles of wire turns are adjacent closely.
  • Fig. 7B shows a top layer part 510 of the wire turn 508 and a top layer part 511 of the wire turn 509 on the composition unit 507.
  • the top layer part 510 of the wire turn 508 is adjacent with the top layer part 511 of the wire turn 509 closely
  • Fig. 7C shows a bottom layer part 512 of the wire turn 508 and a bottom layer part 513 of the wire turn 509 on the composition unit 507.
  • the bottom layer part 512 of the wire turn 508 is adjacent with the bottom layer part 513 of the wire turn 509 closely.
  • Fig. 8 shows the N th dual-sided PCB in the closed Rogowski coil with N dual-sided PCBs according to the specific embodiment of the disclosure
  • Fig. 8A shows the laminating layer of the top layer and bottom layer of the N th dual-sided PCB in the closed Rogowski coil with N dual-sided PCBs
  • Fig. 8B shows the top layer of the N th dual-sided PCB in the closed Rogowski coil with N dual-sided PCBs
  • Fig. 8C shows bottom layer of the N th dual-sided PCB in the closed Rogowski coil with N dual-sided PCBs.
  • the coil 600 on the N th dual-sided PCB in the closed Rogowski coil with N dual-sided PCBs comprises two groups of coils 601 and 602 with opposite winding directions, which represent one part of the first coil and second coil on the closed Rogowski coil with N dual-sided PCBs, respectively.
  • the coil 600 is provided with two external access points, i.e. 603, 604.
  • the external access point 603 is taken as the starting point of the coil 601, and the external access point 604 is taken as the starting point of the coil 602.
  • the external access point 603 is connected with the first coil part on the upper dual-sided PCB, and the external access point 604 is connected with the second coil part thereon.
  • the coil 600 is composed of multiple identical composition units in series connection, and Fig. 8A shows a composition unit 605. As shown in Fig. 8A , Fig. 8B and Fig. BC, the center of composition unit 605 and the centers of other composition units are located on a circular magnetic line generated by the current flowing on the current-carrying conductor 105, and various composition units are uniformly distributed on the circular magnetic line.
  • Each composition unit comprises one cycle of wire turn of two groups of coils with opposite winding directions.
  • the composition unit 605 comprises a cycle of wire turn 606 on the coil 601 and a cycle of wire turn 607 on the coil 602, and the two cycles of wire turns are adjacent closely.
  • Fig. 8B shows a top layer part 608 of the wire turn 606 and a top layer part 609 of the wire turn 607 on the composition unit 605.
  • the top layer part 608 of the wire turn 606 is adjacent with the top layer part 609 of the wire turn 607 closely
  • Fig. 8C shows a bottom layer part 610 of the wire turn 606 and a bottom layer part 611 of the wire turn 607 on the composition unit 605.
  • the bottom layer part 610 of the wire turn 606 is adjacent with the bottom layer part 611 of the wire turn 607 closely.
  • Fig. 7 shows that the closed Rogowski coil with N dual-sided PCBs laminated can be formed by means of series connection for the coils 500 and 600 on the dual-sided PCB.
  • Fig. 7 shows that the external access point 505 of the coil 500 on the dual-sided PCBs is connected with the external access point 603 on the first coil part of the coil 600 on the dual-sided PCBs, the external access point 506 is connected with the external access point 604 on the second coil part of the dual-sided PCBs, and the external access points 503 and 504 are taken as the signal output ends of the closed Rogowski coil.
  • Fig. 9 shows local details of the coil 600 on the N th PCB in the closed Rogowski coil with N dual-sided PCBs.
  • Fig. 9A shows a laminating layer on the local top layer and bottom layer of the closed Rogowski coil with single dual-sided PCB 600
  • Fig. 9B shows a local top layer of the closed Rogowski coil with single dual-sided PCB 600
  • Fig. 9C shows a local bottom layer of the closed Rogowski coil with single dual-sided PCB 600.
  • the laminating layer on the top layer and bottom layer of a composition unit 700 on the N dual-sized PCBs comprises a laminating layer part of a cycle of wire turn 718 on the coil 720 and a laminating layer part of a cycle of wire turn 719 on the other group of coil 721 with opposite winding direction.
  • the laminating layer part of a cycle of wire turn 718 on the coil 720 comprises an incoming line 701, a wiring line 707, a through hole 709, a through hole 704 and an outgoing line 706.
  • the laminating layer part of a cycle of wire turn 719 on the coil 721 comprises an incoming line 702, a wiring line 708, a through hole 710, a through hole 703 and an outgoing line 705.
  • the top layer of a composition unit 700 on the closed PCB Rogowski coil 600 comprises a top layer part of a cycle of wire turn 718 on the coil 720 and a top layer part of a cycle of wire turn 719 on the other group of coil 721 with opposite winding direction.
  • the top layer part of a cycle of wire turn 718 on the coil 720 comprises a through hole 709, a wiring line 714 and a through hole 704.
  • the top layer part of a cycle of wire turn 719 on the coil 721 comprises an incoming line 702, a wiring line 715, a through hole 710, a through hole 703 and an outgoing line 705.
  • the bottom layer of a composition unit 700 on the closed PCB Rogowski coil 600 comprises a bottom layer part of a cycle of wire turn 718 on the coil 720 and a bottom layer part of a cycle of wire turn 719 on the other group of coil 721 with opposite winding direction.
  • the bottom layer part of a cycle of wire turn 718 on the coil 720 comprises an incoming line 701, a wiring line 716, a through hole 709, a through hole 704 and an outgoing line 706.
  • the bottom layer part of a cycle of wire turn 719 on the coil 721 comprises a through hole 710, a wiring line 717 and a through hole 703.
  • the rectangular winding part of a cycle of wire turn 718 on the coil 720 of the closed PCB Rogowski coil 600 is composed of a wiring line 714, a through hole 709, a wiring line 716 and a through hole 704, wherein the wiring line 714 on the top layer of the rectangular winding part and the wiring line 716 on the bottom layer are overlapped in the direction vertical to the surface of PCB.
  • the rectangular winding part of a cycle of wire turn 719 on the other group of coil 721 with opposite winding direction is composed of a wiring line 717, a through hole 710, a wiring line 715 and a through hole 703, wherein the wiring line 717 on the bottom layer of the rectangular winding part and the wiring line 715 on the top layer are overlapped in the direction vertical to the surface of PCB.
  • the rectangular winding section directions of a cycle of wire turn 718 and a cycle of wire turn 719 on the composition unit 700 of the closed PCB Rogowski coil 600 are along the radial direction of the centers of closed PCB Rogowski coil 600 and winding section, or the magnetic line with the centers of various composition units on the closed PCB Rogowski coil 600 is in the normal direction in the center of the winding section.
  • the rectangular winding section directions of a cycle of wire turn 718 and a cycle of wire turn 719 on the composition unit 700 of the closed PCB Rogowski coil 600 are vertical to the radial direction of the centers of closed PCB Rogowski coil 600 and winding section, or the magnetic line with the centers of various composition units on the closed PCB Rogowski coil 600 is in the tangential direction in the center of the winding section.
  • the first composition unit of the closed PCB Rogowski coil 600 is provided with an external access point 711, which is connected with the incoming line of the first wire turn on the coil 720 of the first composition unit, and the first composition unit of the closed PCB Rogowski coil 600 is provided with an external access point 712, which is connected with the incoming line of the first wire turn on the other group of coil 721 with opposite winding direction of the first composition unit.
  • the external access point 711 is connected with the first coil part on the upper dual-sided PCB, and the external access point 712 is connected with the second coil part thereon.
  • two outgoing lines between the through hole 722 of the coil 720 and the through hole 723 of the other group of coil 721 on the last composition unit 713 of the closed PCB Rogowski coil 600 are directly connected through a wiring line 724 to realize the series connection between two groups of coils 720 and 721 with opposite winding directions on the closed PCB Rogowski coil 600.
  • the opened Rogowski coil with two PCBs capable of resisting interference of external magnetic field comprises two groups of series-connected coils in opposite winding direction, i.e. a first coil and a second coil, and each PCB is provided with one part of the first coil and the second coil.
  • the opened Rogowski coil with two PCBs capable of resisting interference of external magnetic field specifically comprises two PCBs, each of which is provided with two external access points, i.e. the first external access point and the second external access point.
  • the first external access point on each PCB is the starting point of the first coil thereon and the second external access point is the ending point of the second coil thereon.
  • Two connection modes are provided for two PCBs: the first external access points of two PCBs are connected directly, the second external access points of two PCBs are taken as two signal output ends of the opened Rogowski coil with two PCBs, i.e. the first signal output end and the second signal output end; the second external access points of two PCBs are connected directly, the first access points of two PCBs are taken as two signal output ends of the opened Rogowski coil with two PCBs, i.e. the first signal output end and the second signal output end.
  • the PCB with the first signal output end is the 1 st PCB
  • the PCB with the second signal output end is the 2 nd PCB.
  • Each one of the 1 st PCB and the 2 nd PCB is composed of multiple identical composition units in series connection, each of which comprises the cycles of wire turns of the first coil and the second coil, and the two cycles of wire turns are adjacent closely. That two cycles of wire turns are adjacent closely can be understood as: the minimum space between two cycles of wire turns is equal to the minimum safety space between the PCBs, the minimum safety space between the PCBs is related to the technology of PCB, e.g. the minimum safety space between the PCBs is 6mil, or 0.1524mm.
  • One cycle of wire turn on the first coil of each composition unit on each PCB of the opened Rogowski coil with two PCBs comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the first coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes among different layers by surrounding.
  • One cycle of wire turn on the second coil of each composition unit on each PCB of the opened Rogowski coil with two PCBs comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the second coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes among different layers by surrounding.
  • the wiring path on the top layer is overlapped with that on the bottom layer.
  • the section of winding lines composed of the wirings on the top layer and bottom layer and two through holes by surrounding is similar to a rectangle.
  • the incoming line at one cycle of wire turn on the first coil of the first composition unit on the 1 st PCB is connected with the first external access point on the 1 st PCB, and the incoming line at one cycle of wire turn on the second coil of the first composition unit on the 1 st PCB is connected with the second external access point on the 1 st PCB.
  • the incoming line at one cycle of wire turn on the first coil of the first composition unit on the 1 st PCB is connected with the first external access point on the 1 st PCB, and the incoming line at one cycle of wire turn on the second coil of the first composition unit on the 1 st PCB is connected with the second external access point on the 1 st PCB.
  • the outgoing line at one cycle of wire turn on the first coil of the last composition unit on the 1 st PCB is directly connected with the outgoing line at one cycle of wire turn on the second coil of the last composition unit on the 1 st PCB to realize the series connection between the first coil and the second coil on the 1 st PCB.
  • the outgoing line at one cycle of wire turn on the first coil of the last composition unit on the 2 nd PCB is directly connected with the outgoing line at one cycle of wire turn on the second coil of the last composition unit on the 2 nd PCB to realize the series connection between the first coil and the second coil on the 2 nd PCB.
  • the section composed of two cycles of wire turns on each composition unit by surrounding is vertical to the surface of PCB, the section composed of the winding lines by surrounding is located on the cross section of PCB, and the wiring paths of the winding lines are overlapped in the direction vertical to the surface of PCB.
  • the centers of the composition units on each PCB are uniformly distributed on a magnetic line of magnetic field for generating current to be measured, the direction of the section surrounded by the winding lines at two cycles of wire turns of all the composition units is close to the normal direction of the magnetic line passing through the section center of the winding line, and the section surrounded by the winding lines at two cycles of wire turns of all the composition units is approximately vertical to the tangential direction (strength direction of the magnetic field) of the magnetic line passing through the section center of the winding line.
  • the PCB is a dual-sided PCB, wherein the first coil and the second coil are located on the upper and lower surfaces of the PCB, so the opened Rogowski coil with two PCBs can be called an opened Rogowski coil with two dual-sided PCBs.
  • the opened Rogowski coil with two dual-sized PCBs capable of resisting interference of external magnetic field comprises two groups of series-connected coils in opposite winding direction, i.e. a first coil and a second coil, and each dual-sized PCB is provided with one part of the first coil and the second coil.
  • the opened Rogowski coil with two PCBs capable of resisting interference of external magnetic field specifically comprises two dual-sized PCBs, each of which is provided with two external access points, i.e. the first external access point and the second external access point.
  • the first external access point on each dual-sized PCB is the starting point of the first coil thereon and the second external access point is the ending point of the second coil thereon.
  • Two connection modes are provided for two PCBs: the first external access points of two PCBs are connected directly, the second external access points of two PCBs are taken as two signal output ends of the opened Rogowski coil with two PCBs, i.e. the first signal output end and the second signal output end; the second external access points of two PCBs are connected directly, the first access points of two PCBs are taken as two signal output ends of the opened Rogowski coil with two PCBs, i.e. the first signal output end and the second signal output end.
  • the PCB with the first signal output end is the 1 st PCB
  • the PCB with the second signal output end is the 2 nd PCB.
  • Each dual-sided one of the 1 st PCB and the 2 nd PCB is composed of multiple identical composition units in series connection, each of which comprises the cycles of wire turns of the first coil and the second coil, and the two cycles of wire turns are adjacent closely. That two cycles of wire turns are adjacent closely can be understood as: the minimum space between two cycles of wire turns is equal to the minimum safety space between the PCBs, the minimum safety space between the PCBs is related to the technology of PCB, e.g. the minimum safety space between the PCBs is 6mil, or 0.1524mm.
  • One cycle of wire turn on the first coil of each composition unit on each dual-sided PCB of the opened Rogowski coil with two dual-sided PCBs comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the first coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes between the top layer and the bottom layer by surrounding.
  • One cycle of wire turn on the second coil of each composition unit on each dual-sided PCB of the opened Rogowski coil with two dual-sided PCBs comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the second coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes between the top layer and the bottom layer by surrounding. Specifically, the wiring path on the top layer is overlapped with that on the bottom layer.
  • the section of winding lines composed of the wirings on the top layer and bottom layer and two through holes by surrounding is similar to a rectangle.
  • the incoming line at one cycle of wire turn on the first coil of the first composition unit on the 1 st PCB is connected with the first external access point on the 1 st PCB, and the incoming line at one cycle of wire turn on the second coil of the first composition unit on the 1 st PCB is connected with the second external access point on the 1 st PCB.
  • the incoming line at one cycle of wire turn on the first coil of the first composition unit on the 2 nd PCB is connected with the first external access point on the 2 nd PCB, and the incoming line at one cycle of wire turn on the second coil of the first composition unit on the 2 nd PCB is connected with the second external access point on the 2 nd PCB.
  • the outgoing line at one cycle of wire turn on the first coil of the last composition unit on the 1 st PCB is directly connected with the outgoing line at one cycle of wire turn on the second coil of the last composition unit on the 1 st PCB to realize the series connection between the first coil and the second coil on the 1 st PCB.
  • the outgoing line at one cycle of wire turn on the first coil of the last composition unit on the 2 nd PCB is directly connected with the outgoing line at one cycle of wire turn on the second coil of the last composition unit on the 2 nd PCB to realize the series connection between the first coil and the second coil on the 2 nd PCB.
  • the section composed of two cycles of wire turns on each composition unit by surrounding is vertical to the surface of dual-sided PCB, the section composed of the winding lines by surrounding is located on the cross section of dual-sided PCB, and the wiring paths of the winding lines are overlapped in the direction vertical to the surface of PCB.
  • the centers of the composition units on each dual-sized PCB are uniformly distributed on a magnetic line of magnetic field for generating current to be measured, the direction of the section surrounded by the winding lines at two cycles of wire turns of all the composition units is close to the normal direction of the magnetic line passing through the section center of the winding line, and the section surrounded by the winding lines at two cycles of wire turns of all the composition units is approximately vertical to the tangential direction (strength direction of the magnetic field) of the magnetic line passing through the section center of the winding line.
  • Fig. 10 shows a specific embodiment of the disclosure, or an opened Rogowski coil with two dual-sided PCBs 500 capable of resisting interference of external magnetic field, which is suitable for measuring the current flowing on a current-carrying conductor 113 vertically passing through the center of opened PCB Rogowski coil 500, and the magnetic line of AC magnetic field generated by the current is a circle of taking the center of opened PCB Rogowski coil 500 as the center of a circle.
  • Fig. 10A shows a laminating layer on the top layer and bottom layer of the opened Rogowski coil with two dual-sided PCBs
  • Fig. 10B shows a top layer of the opened Rogowski coil with two dual-sided PCBs
  • Fig. 10C shows a bottom layer of the opened Rogowski coil with two dual-sided PCBs.
  • the opened Rogowski coil with two dual-sided PCBs 500 comprises two halves of dual-sided PCB Rogowski coils, i.e. the coil 501 and the coil 502.
  • the coil 501 comprises two groups of coils with opposite winding directions, i.e. the coil 503 and the coil 504, both of which form a half dual-sided PCB Rogowski coil 501.
  • the coil 502 comprises two groups of coils with opposite winding directions, i.e. the coil 505 and the coil 506, both of which form a half dual-sided PCB Rogowski coil 502.
  • the coil 500 is provided with four external access points, i.e. 507, 508, 509, 510.
  • the external access point 508 is taken as the starting point of the coil 503, and the external access point 507 is taken as the ending point of the coil 504.
  • the external access point 510 is taken as the starting point of the coil 505, and the external access point 509 is taken as the ending point of the coil 506.
  • the coils 501 and 502 can be used for forming the opened Rogowski coil with two dual-sided PCBs in two ways as follows:
  • Each composition unit on half a coil 501 of the opened dual-sided PCB Rogowski coil 500 comprises two groups of coils with opposite winding directions: respective one cycle of wire turn of the coils 503 and 504; the composition unit 511 comprises a cycle of wire turn 513 of the coil 503 and a cycle of wire turn 514 of the coil 504, and the two cycles of wire turns are adjacent closely.
  • Fig. 10B shows a top layer part 517 of the wire turn 513 and a top layer part 518 of the wire turn 514 on the composition unit 511. The top layer part 517 of the wire turn 513 is adjacent with the top layer part 518 of the wire turn 514 closely, Fig.
  • FIG. 10C shows a bottom layer part 521 of the wire turn 513 and a bottom layer part 522 of the wire turn 514 on the composition unit 511.
  • the bottom layer part 521 of the wire turn 513 is adjacent with the bottom layer part 522 of the wire turn 514 closely.
  • Half a coil 502 of the opened dual-sided PCB Rogowski coil 500 is composed of multiple identical composition units in series connection, and Fig. 10A shows a composition unit 512.
  • Fig. 10A shows a composition unit 512.
  • the center of composition unit 512 and the centers of other composition units are located on a circular magnetic line generated by the current flowing on the current-carrying conductor 113, and various composition units are uniformly distributed on the circular magnetic line.
  • Each composition unit on half a coil 502 of the opened dual-sided PCB Rogowski coil 500 comprises two groups of coils with opposite winding directions: respective one cycle of wire turn of the coils 505 and 506; the composition unit 512 comprises a cycle of wire turn 515 of the coil 505 and a cycle of wire turn 516 of the coil 506, and the two cycles of wire turns are adjacent closely.
  • Fig. 5B shows a top layer part 519 of the wire turn 515 and a top layer part 520 of the wire turn 516 on the composition unit 512.
  • the top layer part 519 of the wire turn 515 is adjacent with the top layer part 520 of the wire turn 516 closely, Fig.
  • FIG. 5C shows a bottom layer part 523 of the wire turn 515 and a bottom layer part 524 of the wire turn 516 on the composition unit 512.
  • the bottom layer part 523 of the wire turn 515 is adjacent with the bottom layer part 524 of the wire turn 516 closely.
  • Fig. 11 shows local details on the right of half a coil 501 on the opened Rogowski coil with two dual-sided PCBs 500 according to the specific embodiment in the disclosure.
  • Fig. 11A shows a laminating layer on the local top layer and bottom layer on the right of half a coil 501 on the opened Rogowski coil with two dual-sided PCBs 500
  • Fig. 11B shows a local top layer
  • Fig. 6C shows a local bottom layer on the right thereof.
  • the laminating layer on the top layer and bottom layer of a composition unit 600 of half a coil 501 on the opened Rogowski coil with two dual-sided PCBs 500 comprises a laminating layer part of a cycle of wire turn 611 on the coil 503 and a laminating layer part of a cycle of wire turn 612 on the other group of coil 504 with opposite winding direction.
  • the laminating layer part of a cycle of wire turn 611 on the coil 503 comprises an incoming line 601, a wiring line 607, a through hole 609, a through hole 603 and an outgoing line 605.
  • the laminating layer part of a cycle of wire turn 612 on the coil 504 comprises an incoming line 602, a wiring line 608, a through hole 610, a through hole 604 and an outgoing line 606.
  • the top layer of a composition unit 600 of half a coil 501 on the opened Rogowski coil with two dual-sided PCBs 500 comprises a top layer part of a cycle of wire turn 611 on the coil 503 and a top layer part of a cycle of wire turn 612 on the other group of coil 504 with opposite winding direction.
  • the top layer part of a cycle of wire turn 611 on the coil 503 comprises an incoming line 601, a wiring line 613, a through hole 609, a through hole 603 and an outgoing line 605.
  • the top layer part of a cycle of wire turn 612 on the coil 504 comprises a through hole 610, a wiring line 614 and a through hole 604.
  • the bottom layer of a composition unit 600 of half a coil 501 on the opened Rogowski coil with two dual-sided PCBs 500 comprises a bottom layer part of a cycle of wire turn 611 on the coil 503 and a top layer part of a cycle of wire turn 612 on the other group of coil 504 with opposite winding direction.
  • the bottom layer part of a cycle of wire turn 611 on the coil 503 comprises a through hole 609, a wiring line 615 and a through hole 603.
  • the bottom layer part of a cycle of wire turn 612 on the coil 504 comprises an incoming line 602, a wiring line 616, a through hole 610, a through hole 604 and an outgoing line 606.
  • the rectangular winding part of a cycle of wire turn 611 on the coil 503 is composed of a wiring line 613, a through hole 609, a wiring line 615 and a through hole 604, wherein the wiring line 613 on the top layer of the rectangular winding part and the wiring line 615 on the bottom layer are overlapped in the direction vertical to the surface of PCB.
  • the rectangular winding part of a cycle of wire turn 612 on the other group of coil 504 with opposite winding direction is composed of a wiring line 616, a through hole 610, a wiring line 614 and a through hole 604, wherein the wiring line 616 on the bottom layer of the rectangular winding part and the wiring line 614 on the top layer are overlapped in the direction vertical to the surface of PCB.
  • the rectangular winding section directions of a cycle of wire turn 611 on the coil 503 and a cycle of wire turn 612 on the coil 504 are approximately along the radial direction of the centers of opened Rogowski coil with two dual-sized PCBs 600 and winding section, or the magnetic line with the centers of various composition units on the opened Rogowski coil with two dual-sized PCBs 500 is in the normal direction in the center of the winding section.
  • the rectangular winding section directions of a cycle of wire turn 611 on the coil 503 and a cycle of wire turn 612 on the coil 504 are approximately vertical to the radial direction of the centers of opened Rogowski coil with two dual-sized PCBs 500 and winding section, or the magnetic line with the centers of various composition units on the opened Rogowski coil with two dual-sized PCBs 500 is in the tangential direction in the center of the winding section.
  • the first composition unit on the half a coil 501 of the opened Rogowski coil with two dual-sized PCBs 500 is provided with an external access point 508, which is connected with the incoming line of the first wire turn on the coil 503 of the first composition unit.
  • the first composition unit on the half a coil 501 of the opened Rogowski coil with two dual-sized PCBs 500 is provided with an external access point 507, which is connected with the incoming line of the first wire turn on the other group of coil 504 with opposite winding direction.
  • Fig. 12 shows local details on the left of half a coil on the opened Rogowski coil with two dual-sided PCBs according to the specific embodiment in the disclosure.
  • Fig. 12A shows a laminating layer on the local top layer and bottom layer on the left of half a coil on the opened Rogowski coil with two dual-sided PCBs
  • Fig. 12B shows a local top layer
  • Fig. 12C shows a local bottom layer on the left thereof.
  • the outgoing line from the through hole 702 of the coil 503 on the last composition unit 701 of half a coil 501 on the opened Rogowski coil with two dual-sided PCBs is directly connected with the outgoing line from the through hole 703 on the other group of coil 504 with opposite winding direction through the wiring line 704 to realize the series connection between two groups of coils 503 and 504 with opposite winding directions of half a coil 501 on the opened Rogowski coil with two dual-sided PCBs.
  • the opened Rogowski coil with multiple PCBs capable of resisting interference of external magnetic field comprises two groups of series-connected coils in opposite winding direction, i.e. a first coil and a second coil, and each PCB is provided with one part of the first coil and the second coil.
  • the opened Rogowski coil with multiple PCBs capable of resisting interference of external magnetic field is specifically composed of two halves of PCB Rogowski coils, each of which is composed of N PCBs by laminating.
  • Each half of the PCB Rogowski coil is provided with two signal output ends, i.e. the first signal output end and the second signal output end.
  • the PCB with the first and second signal output ends is the 1 st PCB, the PCB adjacent with the 1 st PCB is the 2 nd PCB, if N ⁇ 3, the rest can be done in the same manner, it is the 3 rd PCB till the N th PCB is present.
  • the N th PCB on each half of the PCB Rogowski coil is provided with two external access points, i.e. the first external access point and the second external access point, wherein the first external access point is the starting point of the first coil on the N th PCB, and the second external access point is the starting point of the second coil on the N th PCB.
  • the first external access point on the 1 st PCB on each half of the PCB Rogowski coil is the first signal output end
  • the second external access point on the 1 st PCB is the second signal output end.
  • the third external access point on the upper one of the adjacent and laminated PCBs on each half of the PCB Rogowski coil is connected with the first external access point on the lower one to realize the series connection between the first coil part on the upper PCB and the first coil part on the lower PCB to form a complete first coil.
  • the fourth external access point on the upper one of the adjacent and laminated PCBs on each half of the PCB Rogowski coil is connected with the second external access point on the lower one to realize the series connection between the second coil part on the upper PCB and the second coil part on the lower PCB to form a complete second coil.
  • the first coil and the second coil on each half of the PCB Rogowski coil are directly connected in series on the N th PCB to form half an opened Rogowski coil with multiple PCBs capable of resisting interference of external magnetic field.
  • Two connection modes are provided for two halves of PCB Rogowski coils on the opened Rogowski coil with multiple PCBs: the first external access points of two halves of PCB Rogowski coils are connected directly, the second external access points of two halves of PCB Rogowski coils are taken as two signal output ends of the opened Rogowski coil with multiple PCBs, i.e. the first signal output end and the second signal output end; the second external access points of two halves of Rogowski coils are connected directly, and the first access points of two halves of PCB Rogowski coils are taken as two signal output ends of the opened Rogowski coil with multiple PCBs, i.e. the first signal output end and the second signal output end.
  • Each PCB of the opened Rogowski coil with multiple PCBs is composed of multiple identical composition units in series connection, each of which comprises the cycles of wire turns of the first coil and the second coil, and the two cycles of wire turns are adjacent closely. That two cycles of wire turns are adjacent closely can be understood as: the minimum space between two cycles of wire turns is equal to the minimum safety space between the PCBs, the minimum safety space between the PCBs is related to the technology of PCB, e.g. the minimum safety space between the PCBs is 6mil, or 0.1524mm.
  • One cycle of wire turn on the first coil of each composition unit on each PCB of the opened Rogowski coil with multiple PCBs comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the first coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes among different layers by surrounding.
  • One cycle of wire turn on the second coil of each composition unit on each PCB of the opened Rogowski coil with multiple PCBs comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the second coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes among different layers by surrounding.
  • the wiring path on the top layer is overlapped with that on the bottom layer.
  • the section of winding lines composed of the wirings on the top layer and bottom layer and two through holes by surrounding is similar to a rectangle.
  • the incoming line at one cycle of wire turn on the first coil of the first composition unit from the 1 st PCB to the N th PCB on the opened Rogowski coil with multiple PCBs is connected with the first external access point from the 1 st PCB to the N th PCB
  • the incoming line at one cycle of wire turn on the second coil of the first composition unit from the 1 st PCB to the N th PCB is connected with the second external access point from the 1 st PCB to the N th PCB.
  • the outgoing line at one cycle of wire turn on the first coil of the last composition unit from the 1 st PCB to the (N-1) th PCB is connected with the third external access point from the 1 st PCB to the (N-1) th PCB
  • the outgoing line at one cycle of wire turn on the second coil of the last composition unit from the 1 st PCB to the (N-1) th PCB is connected with the fourth external access point from the 1 st PCB to the (N-1) th PCB.
  • the outgoing line at one cycle of wire turn on the first coil of the last composition unit on the N th PCB is directly connected with the outgoing line at one cycle of wire turn on the second coil of the last composition unit on the N th PCB to realize the series connection between the first coil and the second coil on the N th PCB.
  • the section composed of two cycles of wire turns on each composition unit by surrounding is vertical to the surface of PCB, the section composed of the winding lines by surrounding is located on the cross section of PCB, and the wiring paths of the winding lines are overlapped in the direction vertical to the surface of PCB.
  • the centers of the composition units on each PCB are uniformly distributed on a magnetic line of magnetic field for generating current to be measured, the direction of the section surrounded by the winding lines at two cycles of wire turns of all the composition units is approximately along the normal direction of the magnetic line passing through the section center of the winding line, and the section surrounded by the winding lines at two cycles of wire turns of all the composition units is approximately vertical to the tangential direction (strength direction of the magnetic field) of the magnetic line passing through the section center of the winding line.
  • the PCB is a dual-sided PCB, wherein the first coil and the second coil are located on the upper and lower surfaces of the PCB, so the opened Rogowski coil with multiple PCBs can be called an opened Rogowski coil with multiple dual-sided PCBs.
  • the opened Rogowski coil with multiple dual-sized PCBs capable of resisting interference of external magnetic field comprises two groups of series-connected coils in opposite winding direction, i.e. a first coil and a second coil, and each dual-sized PCB is provided with one part of the first coil and the second coil.
  • the opened Rogowski coil with multiple dual-sized PCBs capable of resisting interference of external magnetic field is specifically composed of two halves of PCB Rogowski coils, each of which is composed of N dual-sized PCBs by laminating.
  • Each half of the Rogowski coil is provided with two signal output ends, i.e. the first signal output end and the second signal output end.
  • the PCB with the first and second signal output ends is the 1 st PCB
  • the PCB adjacent with the 1 st PCB is the 2 nd PCB, if N ⁇ 3, the rest can be done in the same manner, it is the 3 rd PCB till the N th PCB is present.
  • the N th PCB on each half of the PCB Rogowski coil is provided with two external access points, i.e. the first external access point and the second external access point, wherein the first external access point is the starting point of the first coil on the N th PCB, and the second external access point is the starting point of the second coil on the N th PCB.
  • the first external access point on the 1 st PCB on each half of the PCB Rogowski coil is the first signal output end
  • the second external access point on the 1 st PCB is the second signal output end.
  • the third external access point on the upper one of the adjacent and laminated PCBs on each half of the PCB Rogowski coil is connected with the first external access point on the lower one to realize the series connection between the first coil part on the upper PCB and the first coil part on the lower PCB to form a complete first coil.
  • the fourth external access point on the upper one of the adjacent and laminated PCBs on each half of the PCB Rogowski coil is connected with the second external access point on the lower one to realize the series connection between the second coil part on the upper PCB and the second coil part on the lower PCB to form a complete second coil.
  • the first coil and the second coil on each half of the PCB Rogowski coil are directly connected in series on the N th PCB to form half an opened Rogowski coil with multiple dual-sized PCBs capable of resisting interference of external magnetic field.
  • Two connection modes are provided for two halves of PCB Rogowski coils on the opened Rogowski coil with multiple PCBs: the first external access points of two halves of PCB Rogowski coils are connected directly, the second external access points of two halves of PCB Rogowski coils are taken as two signal output ends of the opened Rogowski coil with multiple dual-sized PCBs, i.e. the first signal output end and the second signal output end; the second external access points of two halves of Rogowski coils are connected directly, and the first access points of two halves of PCB Rogowski coils are taken as two signal output ends of the opened Rogowski coil with multiple dual-sized PCBs, i.e. the first signal output end and the second signal output end.
  • Each dual-sized PCB of the opened Rogowski coil with multiple dual-sized PCBs is composed of multiple identical composition units in series connection, each of which comprises the cycles of wire turns of the first coil and the second coil, and the two cycles of wire turns are adjacent closely. That two cycles of wire turns are adjacent closely can be understood as: the minimum space between two cycles of wire turns is equal to the minimum safety space between the PCBs, the minimum safety space between the PCBs is related to the technology of PCB, e.g. the minimum safety space between the PCBs is 6mil, or 0.1524mm.
  • One cycle of wire turn on the first coil of each composition unit on each dual-sided PCB of the opened Rogowski coil with multiple dual-sided PCBs comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the first coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes between the top layer and the bottom layer by surrounding.
  • One cycle of wire turn on the second coil of each composition unit on each dual-sided PCB of the opened Rogowski coil with multiple dual-sided PCBs comprises an incoming line, a winding line and an outgoing line, wherein the incoming line and outgoing line are respectively connected with the wire turns of the second coils on the upper composition unit and the lower composition unit, and the winding line is composed of wirings and through holes between the top layer and the bottom layer by surrounding. Specifically, the wiring path on the top layer is overlapped with that on the bottom layer.
  • the section of winding lines composed of the wirings on the top layer and bottom layer and two through holes by surrounding is similar to a rectangle.
  • the incoming line at one cycle of wire turn on the first coil of the first composition unit from the 1 st PCB to the N th PCB on the opened Rogowski coil with multiple dual-sized PCBs is connected with the first external access point from the 1 st PCB to the N th PCB, and the incoming line at one cycle of wire turn on the second coil of the first composition unit from the 1 st PCB to the N th PCB is connected with the second external access point from the 1 st PCB to the N th PCB.
  • the outgoing line at one cycle of wire turn on the first coil of the last composition unit from the 1 st PCB to the (N-1) th PCB is connected with the third external access point from the 1 st PCB to the (N-1) th PCB
  • the outgoing line at one cycle of wire turn on the second coil of the last composition unit from the 1 st PCB to the (N-1) th PCB is connected with the fourth external access point from the 1 st PCB to the (N-1) th PCB.
  • the outgoing line at one cycle of wire turn on the first coil of the last composition unit on the N th PCB is directly connected with the outgoing line at one cycle of wire turn on the second coil of the last composition unit on the N th PCB to realize the series connection between the first coil and the second coil on the N th PCB.
  • the section composed of two cycles of wire turns on each composition unit by surrounding is vertical to the surface of dual-sided PCB, the section composed of the winding lines by surrounding is located on the cross section of dual-sided PCB, and the wiring paths on the top layer and bottom layer of the winding lines are overlapped in the direction vertical to the surface of PCB.
  • the centers of the composition units on each dual-sized PCB are uniformly distributed on a magnetic line of magnetic field for generating current to be measured, the direction of the section surrounded by the winding lines at two cycles of wire turns of all the composition units is approximately along the normal direction of the magnetic line passing through the section center of the winding line, and the section surrounded by the winding lines at two cycles of wire turns of all the composition units is approximately vertical to the tangential direction (strength direction of the magnetic field) of the magnetic line passing through the section center of the winding line.
  • Fig. 13 shows a specific embodiment of the disclosure, or an opened Rogowski coil with multiple dual-sided PCBs 500 composed of N layers of dual-sized PCBs by laminating from the 1 st layer to the (N-1) th layer, which is suitable for measuring the current flowing on a current-carrying conductor 113 vertically passing through the center of opened PCB Rogowski coil 500, and the magnetic line of AC magnetic field generated by the current is a circle of taking the center of opened PCB Rogowski coil 500 as the center of a circle.
  • FIG. 13A shows a laminating layer on the top layer and bottom layer of the dual-sized PCB from the 1 st layer to the (N-1) th layer on the opened Rogowski coil with multiple dual-sided PCBs 500 composed of N layers of dual-sized PCBs by laminating
  • Fig. 13B shows a top layer
  • Fig. 13C shows a bottom layer thereof.
  • the dual-sized PCB from the 1 st layer to the (N-1) th layer on the opened Rogowski coil with multiple dual-sided PCBs 500 composed of N layers of dual-sized PCBs by laminating comprises two halves of dual-sided PCB Rogowski coils, i.e. the coils 501 and 502.
  • the coil 501 comprises two groups of coils with opposite winding directions, i.e. the coil 503 and the coil 504, both of which form a half dual-sided PCB Rogowski coil 501.
  • the coil 502 comprises two groups of coils with opposite winding directions, i.e. the coil 505 and the coil 506, both of which form a half dual-sided PCB Rogowski coil 502.
  • the coil 501 is provided with four external access points, i.e. 507, 508, 517, 518.
  • the external access point 508 is taken as the starting point of the coil 503, and the external access point 517 is taken as the ending point of the coil 503.
  • the external access point 507 is taken as the starting point of the coil 504, and the external access point 518 is taken as the ending point of the coil 504.
  • the coil 502 is provided with four external access points, i.e. 509, 510, 519, 520.
  • the external access point 510 is taken as the starting point of the coil 505, and the external access point 519 is taken as the ending point of the coil 505.
  • the external access point 509 is taken as the starting point of the coil 506, and the external access point 520 is taken as the ending point of the coil 506.
  • the coil 501 is composed of multiple identical composition units in series connection, and Fig. 13A shows a composition unit 511. As shown in Fig. 13A , Fig. 13B and Fig. 13C , the center of composition unit 511 and the centers of other composition units are located on a circular magnetic line generated by the current flowing on the current-carrying conductor 113, and various composition units are uniformly distributed on the circular magnetic line.
  • Each composition unit of the coil 501 comprises two groups of coils with opposite winding directions: one cycle of wire turns of the coils 503 and 504.
  • the composition unit 511 comprises a cycle of wire turn 513 on the coil 503 and a cycle of wire turn 514 on the coil 504, and the two cycles of wire turns are adjacent closely.
  • Fig. 13B shows a top layer part 521 of the wire turn 513 and a top layer part 522 of the wire turn 514 on the composition unit 511.
  • the top layer part 521 of the wire turn 513 is adjacent with the top layer part 522 of the wire turn 514 closely
  • Fig. 13C shows a bottom layer part 526 of the wire turn 513 and a bottom layer part 527 of the wire turn 514 on the composition unit 511.
  • the bottom layer part 526 of the wire turn 513 is adjacent with the bottom layer part 527 of the wire turn 514 closely.
  • the coil 502 is composed of multiple identical composition units in series connection, and Fig. 13A shows a composition unit 512. As shown in Fig. 13A , Fig. 13B and Fig. 13C , the center of composition unit 512 and the centers of other composition units are located on a circular magnetic line generated by the current flowing on the current-carrying conductor 113, and various composition units are uniformly distributed on the circular magnetic line.
  • Each composition unit of the coil 502 comprises two groups of coils with opposite winding directions: one cycle of wire turns of the coils 505 and 506.
  • the composition unit 512 comprises a cycle of wire turn 515 on the coil 505 and a cycle of wire turn 516 on the coil 506, and the two cycles of wire turns are adjacent closely.
  • Fig. 13B shows a top layer part 523 of the wire turn 515 and a top layer part 524 of the wire turn 516 on the composition unit 512.
  • the top layer part 523 of the wire turn 515 is adjacent with the top layer part 524 of the wire turn 516 closely
  • Fig. 10C shows a bottom layer part 528 of the wire turn 515 and a bottom layer part 529 of the wire turn 516 on the composition unit 512.
  • the bottom layer part 528 of the wire turn 515 is adjacent with the bottom layer part 529 of the wire turn 516 closely.
  • Fig. 14 shows a dual-sized PCB on the N th layer of the opened Rogowski coil with multiple dual-sided PCBs composed of N layers of dual-sized PCBs by laminating according to the specific embodiment in the disclosure.
  • Fig. 14A shows a laminating layer on the top layer and bottom layer of the dual-sized PCB on the N th layer of the opened Rogowski coil with multiple dual-sided PCBs 500 composed of N layers of dual-sized PCBs by laminating
  • Fig. 14B shows a top layer
  • Fig. 14C shows a bottom layer thereof.
  • the dual-sized PCB on the N th layer of the opened Rogowski coil with multiple dual-sided PCBs 500 composed of N layers of dual-sized PCBs by laminating comprises two halves of dual-sided PCB Rogowski coils, i.e. the coils 601 and 602.
  • the coil 601 comprises two groups of coils with opposite winding directions, i.e. the coil 603 and the coil 604, both of which form a half dual-sided PCB Rogowski coil 601.
  • the coil 602 comprises two groups of coils with opposite winding directions, i.e. the coil 606 and the coil 606, both of which form a half dual-sided PCB Rogowski coil 602.
  • the coil 601 is provided with two external access points, i.e. 607, 608.
  • the external access point 608 is taken as the starting point of the coil 603, and the external access point 607 is taken as the starting point of the coil 604.
  • the coil 602 is provided with two external access points, i.e. 609, 610.
  • the external access point 610 is taken as the starting point of the coil 605, and the external access point 609 is taken as the starting point of the coil 606.
  • the coil 601 is composed of multiple identical composition units in series connection, and Fig. 14A shows a composition unit 611. As shown in Fig. 14A , Fig. 14B and Fig. 14C , the center of composition unit 611 and the centers of other composition units are located on a circular magnetic line generated by the current flowing on the current-carrying conductor 113, and various composition units are uniformly distributed on the circular magnetic line.
  • Each composition unit of the coil 601 comprises two groups of coils with opposite winding directions: one cycle of wire turns of the coils 603 and 604.
  • the composition unit 611 comprises a cycle of wire turn 613 on the coil 603 and a cycle of wire turn 614 on the coil 604, and the two cycles of wire turns are adjacent closely.
  • Fig. 14B shows a top layer part 617 of the wire turn 613 and a top layer part 618 of the wire turn 614 on the composition unit 611.
  • the top layer part 617 of the wire turn 613 is adjacent with the top layer part 618 of the wire turn 614 closely
  • Fig. 14C shows a bottom layer part 621 of the wire turn 613 and a bottom layer part 622 of the wire turn 614 on the composition unit 611.
  • the bottom layer part 621 of the wire turn 613 is adjacent with the bottom layer part 622 of the wire turn 614 closely.
  • the coil 602 is composed of multiple identical composition units in series connection, and Fig. 14A shows a composition unit 612. As shown in Fig. 14A , Fig. 14B and Fig. 14C , the center of composition unit 612 and the centers of other composition units are located on a circular magnetic line generated by the current flowing on the current-carrying conductor 113, and various composition units are uniformly distributed on the circular magnetic line.
  • Each composition unit of the coil 602 comprises two groups of coils with opposite winding directions: one cycle of wire turns of the coils 605 and 606.
  • the composition unit 612 comprises a cycle of wire turn 615 on the coil 605 and a cycle of wire turn 616 on the coil 606, and the two cycles of wire turns are adjacent closely.
  • Fig. 14B shows a top layer part 619 of the wire turn 615 and a top layer part 620 of the wire turn 616 on the composition unit 612.
  • the top layer part 619 of the wire turn 615 is adjacent with the top layer part 620 of the wire turn 616 closely
  • Fig. 14C shows a bottom layer part 623 of the wire turn 615 and a bottom layer part 624 of the wire turn 616 on the composition unit 612.
  • the bottom layer part 623 of the wire turn 615 is adjacent with the bottom layer part 624 of the wire turn 616 closely.
  • Fig. 15 shows local details on the right of the dual-sized PCB from the 1 st PCB to the (N-1) th PCB of the half opened Rogowski coil with multiple dual-sided PCBs composed of N layers of dual-sized PCBs by laminating according to the specific embodiment in the disclosure.
  • Fig. 15A shows a laminating layer on the top layer and bottom layer of the dual-sized PCB from the 1 st PCB to the (N-1) th PCB of the half opened Rogowski coil with multiple dual-sided PCBs composed of N layers of dual-sized PCBs by laminating
  • Fig. 15B shows a top layer
  • Fig. 15C shows a bottom layer thereof.
  • the laminating layer on the top layer and bottom layer of a composition unit 700 on the coil 501 comprises a laminating layer part of a cycle of wire turn 711 on the coil 503 and a laminating layer part of a cycle of wire turn 712 on the other group of coil 504 with opposite winding direction.
  • the laminating layer part of a cycle of wire turn 711 on the coil 503 comprises an incoming line 701, a wiring line 707, a through hole 709, a through hole 703 and an outgoing line 705.
  • the laminating layer part of a cycle of wire turn 712 on the coil 504 comprises an incoming line 702, a wiring line 708, a through hole 710, a through hole 704 and an outgoing line 706.
  • the top layer of a composition unit 700 on the coil 501 comprises a top layer part of a cycle of wire turn 711 on the coil 503 and a top layer part of a cycle of wire turn 712 on the other group of coil 504 with opposite winding direction.
  • the top layer part of a cycle of wire turn 711 on the coil 503 comprises an incoming line 701, a wiring line 713, a through hole 709, a through hole 703 and an outgoing line 705.
  • the top layer part of a cycle of wire turn 712 on the coil 504 comprises a through hole 710, a wiring line 714 and a through hole 704.
  • the bottom layer of a composition unit 700 on the coil 501 comprises a bottom layer part of a cycle of wire turn 711 on the coil 503 and a bottom layer part of a cycle of wire turn 712 on the other group of coil 504 with opposite winding direction.
  • the bottom layer part of a cycle of wire turn 711 on the coil 503 comprises a through hole 709, a wiring line 715 and a through hole 703.
  • the bottom layer part of a cycle of wire turn 712 on the coil 504 comprises an incoming line 702, a wiring line 716, a through hole 710, a through hole 704 and an outgoing line 706.
  • the rectangular winding part of a cycle of wire turn 711 on the coil 503 is composed of a wiring line 713, a through hole 709, a wiring line 715 and a through hole 704, wherein the wiring line 713 on the top layer of the rectangular winding part and the wiring line 715 on the bottom layer are overlapped in the direction vertical to the surface of PCB.
  • the rectangular winding part of a cycle of wire turn 712 on the other group of coil 504 with opposite winding direction is composed of a wiring line 716, a through hole 710, a wiring line 714 and a through hole 704, wherein the wiring line 716 on the bottom layer of the rectangular winding part and the wiring line 714 on the top layer are overlapped in the direction vertical to the surface of PCB.
  • the rectangular winding section directions of a cycle of wire turn 711 on the coil 503 and a cycle of wire turn 712 on the coil 504 are approximately along the radial direction of the centers of opened Rogowski coil with multiple dual-sized PCBs 500 and winding section, or the magnetic line with the centers of various composition units on the opened Rogowski coil with multiple dual-sized PCBs 500 is in the normal direction in the center of the winding section.
  • the rectangular winding section directions of a cycle of wire turn 711 on the coil 503 and a cycle of wire turn 712 on the coil 504 are approximately along the radial direction of the centers of opened Rogowski coil with multiple dual-sized PCBs 500 and winding section, or the magnetic line with the centers of various composition units on the opened Rogowski coil with multiple dual-sized PCBs 500 is in the tangential direction in the center of the winding section.
  • the first composition unit on the half a coil 501 of the opened Rogowski coil with two dual-sized PCBs 500 is provided with an external access point 508, which is connected with the incoming line of the first wire turn on the coil 503 of the first composition unit.
  • the first composition unit on the coil 501 is provided with an external access point 507, which is connected with the incoming line of the first wire turn on the other group of coil 504 with opposite winding direction.
  • Fig. 16 shows local details on the left of the dual-sized PCB from the 1 st PCB to the (N-1) th PCB of the half opened Rogowski coil with multiple dual-sided PCBs 500 composed of N layers of dual-sized PCBs by laminating according to the specific embodiment in the disclosure.
  • Fig. 16A shows a laminating layer on the top layer and bottom layer of the dual-sized PCB on the N th layer of the half opened Rogowski coil with multiple dual-sided PCBs 500 composed of N layers of dual-sized PCBs by laminating
  • Fig. 16B shows a top layer
  • Fig. 16C shows a bottom layer thereof.
  • the outgoing line from the through hole 802 of the coil 603 on the last composition unit 801 of the N th dual-sized PCB on the half opened Rogowski coil with multiple dual-sided PCBs composed of N layers of dual-sized PCBs by laminating is directly connected with the outgoing line from the through hole 803 of the other group of coil 604 with opposite winding direction through the wiring line 804 on the top layer to realize the series connection between two groups of coils 603 and 604 with opposite winding directions of the N th dual-sized PCB on the half opened Rogowski coil with multiple dual-sided PCBs composed of N layers of dual-sized PCBs by laminating.
  • the protective range of the disclosure is not limited to this, the change or replacement easily thought by any technical personnel familiar with the technical field shall be included in the protective range of the disclosure.
  • the protective range of the disclosure shall be subject to the protective range in the Claims.

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Claims (13)

  1. Une bobine de Rogowski (500) avec une carte PCB, comprenant deux groupes de bobines connectées en série dans un sens de bobinage opposé, c'est-à-dire une première bobine (501) et une seconde bobine (502), chacune d'entre elles comprenant plusieurs cycles de spires filaires, dans lequel
    un cycle de fil sur la première bobine (501) comprend une première Z ┌ligne (601)┘ Z, une première ligne d'enroulement I Z ┌ligne (607)┘ Z et une
    première ligne I Z ┌ligne (606),┘ Z
    dans lequel les premières lignes d'enroulement de divers cycles de fil s'enroulent sur la première bobine
    501) sont parallèles les unes aux autres et respectivement disposées sur les surfaces supérieure et inférieure d'une carte PCB; la première ligne entrante, passant par un premier trou traversant Z ┌ (609) J sur la carte PCB, est connectée à la première ligne d'enroulement: la première ligne d'enroulement, passant par un second I Z ┌trou (604),┘ Z est connectée avec
    la première ligne sortante; et la première ligne sortante est également connectée à la première ligne entrante du cycle inférieur du fil enroulé sur la première bobine (501); et
    un cycle de fil enroulé sur la deuxième bobine (502) comprend une deuxième ligne entrante, une deuxième ligne d'enroulement et une deuxième ligne de sortie, les deuxièmes lignes de bobinage de divers cycles de spires sur la deuxième bobine (502) sont parallèles entre elles et respectivement disposées sur les surfaces supérieure et inférieure d'une carte PCB; la deuxième ligne entrante est connectée à la deuxième ligne d'enroulement; la deuxième ligne d'enroulement, passant par un troisième trou de passage de la carte PCB, provient d'un quatrième trou et elle est connectée à la deuxième ligne sortante; et la seconde ligne sortante est également connectée à la seconde ligne entrante du cycle inférieur de l'enroulement de la seconde bobine (502); et
    le premier trou de passage est adjacent au quatrième trou de passage, le deuxième trou de passage est adjacent au troisième trou de passage et la distance entre la première ligne d'enroulement et la deuxième ligne d'enroulement est inférieure à celle séparant deux cycles adjacents de spires; Z ┌caractérisé en ce que┘ Z une section, composée des premières lignes d'enroulement aux différents cycles de fil d'enroulement sur la première bobine (501) de passage en l'entourant, est située sur une section transversale de la carte PCB, et les premières lignes d'enroulement. Z ┌(614, 616)┘ Z aux différentes
    cycles d'enroulement sur la première bobine (501) se chevauchent dans la direction verticale de la surface de la carte PCB; la section, composée des deuxièmes lignes d'enroulement aux différents cycles de tours de fil sur la deuxième bobine (502) en l'entourant, est située sur une section transversale de la carte PCB, et les deuxièmes lignes d'enroulement, z ┌(615, 617)┘Z
    aux différents cycles de spires sur la seconde bobine (502) se chevauchent dans la direction verticale de la surface de la carte PCB.
  2. La bobine de Rogowski avec carte PCB (500) selon la revendication 1, est caractérisée par le fait que la première bobine (501) et la seconde bobine (502) sont disposées sur Z ┌la surface supérieure et inférieure d'un bilatéral d'une seule carte PCB simple à double face Z┘ pour former une bobine de Rogowski fermée (500) avec une seule carte PCB.
  3. La bobine de Rogowski avec carte PCB (500) selon l'affirmation 1, est caractérisée par le fait que la première bobine (501) et la deuxième bobine (502) sont disposées sur de multiples (N≥2) PCBs laminées pour former une bobine de Rogowski fermée (500);
    dans la bobine de Rogowski avec plusieurs cartes PCBs (500), de multiple cycles de tours de fil sur les première et deuxième bobines (501,502) sont respectivement enroulés sur chacun des multiples PCBs, et les PCBs avec plusieurs cycles de tours de fil sont connectés de manière ordonnée via l'accès externe points sur les PCB.
  4. La bobine de Rogowski avec carte PCB (500) selon l'affirmation 1, est caractérisée par le fait que la première bobine (501) et la deuxième bobine (502) sont arrangées sur deux cartes PCBs pour former une bobine de Rogowski ouverte (500) avec deux cartes PCBs; dans une bobine de Rogowski (500) ouverte avec deux cartes PCBs (500), les deux PCBs sont conçues pour être des PCBs annulaires semi-circulaires, avec plusieurs cycles de bobinage des première et deuxième bobines (501,502) enroulées sur les deux PCBs, respectivement; et
    les deux PCBs à plusieurs cycles de tours de fil sont respectivement pourvues de deux points d'accès externes; et
    les deux PCBs sont connectées via un point d'accès externe respectif; et
    les deux autres points d'accès externes de deux PCBs sont considérés comme les extrémités de sortie de signal respectives de deux PCBs, respectivement.
  5. La bobine Rogowski avec carte PCB (500) selon l'affirmation 1, est caractérisée par le fait que la première bobine (501) et la deuxième bobine (502) sont arrangées sur plusieurs (N≥3) cartes PCBs pour former une bobine de Rogowski ouverte (500) avec plusieurs PCBs;
    dans une bobine de Rogowski (500) ouverte avec plusieurs PCBs, les PCBs sont laminées pour former deux groupes de PCB annulaires semi-circulaires, de multiples cycles de bobinage des première et seconde bobines (501,502) sont enroulés sur les deux groupes de PCBs respectivement ; dans le même groupe de PCBs annulaires semi-circulaires, les PCBs annulaires semi-circulaires avec plusieurs cycles de bobinage sont connectées par le point d'accès externe correspondant, et l'un des deux autres points d'accès externes des PCBs annulaires semi-circulaires est considéré comme le point de connexion de l'autre groupe de PCBs annulaires semi-circulaires , et l'autre est considéré comme l'extrémité de sortie de signal du groupe de PCBs annulaires semi-circulaires.
  6. La bobine de Rogowski fermée avec une seule carte PCB (500) selon l'affiration 2, dans laquelle
    une unité de composition est composée d'un cycle de bobinage de la première bobine (501) et d'un cycle de bobinage adjacent sur la deuxième bobine (502), deux cycles de bobinages dans l'unité de composition sont adjacents étroitement ; et de multiples unités de compositions identiques sont connectées en série; ou
    la première ligne entrante et la première ligne sortante de la première bobine (501) dans chaque unité de composition sont respectivement connectées aux spires des premières bobines (501) sur une unité de composition supérieure et une unité de composition inférieure, la première ligne d'enroulement est composée de câblages sur la couche supérieure et la couche inférieure, connectant le premier trou de passage et le deuxième trou de passage entre la couche supérieure et la couche inférieure, la deuxième ligne entrante et la deuxième ligne sortante de chaque unité de composition sont respectivement connectées aux spires des deuxièmes bobines (502) sur l'unité de composition supérieure et l'unité de composition inférieure, et la deuxième ligne d'enroulement est composée de câblages sur la couche supérieure et la couche inférieure, reliant le troisième trou de passage et le quatrième trou de passage entre la couche supérieure et la couche inférieure.
  7. La bobine de Rogowski à une seule carte PCB fermée (500) selon l'affiramtion 2 ou 6, dans laquelle
    deux extrémités de sortie de signal sont fournies, c.-à-d. une première extrémité de sortie de signal et une seconde extrémité de sortie de signal, où c'est connecté avec la première extrémité de signal de sortie qui est la première ligne de la boucle de la première bobine (501), qui est connectée à la deuxième ligne de sortie est la seconde ligne entrante lors du second cycle de fil de la seconde bobine (502), la première ligne sortante du dernier cycle de tour de fil sur la première bobine (501) est connectée à la seconde ligne sortante lors du dernier cycle de tour de fil sur la deuxième bobine (502), et une connexion en série entre la première bobine (501) et la deuxième bobine (502) de la bobine de Rogowski fermée avec une seule carte PCB est réalisée; ou les centres de toutes les unités de composition sont uniformément répartis sur une ligne magnétique de champ magnétique afin de générer le courant à mesurer, la direction de la section entourée par les lignes d'enroulement au niveau des spires de fil sur la première bobine (501) de toutes les unités de composition est proche de la direction normale de la ligne magnétique passant par le centre de la section de la ligne d'enroulement ; la direction de la section entourée par les lignes d'enroulement pendant la rotation du fil sur la première bobine (501) est approximativement verticale par rapport à la direction normale de la ligne magnétique passant par le centre de section de la ligne d'enroulement; la direction de la section entourée par les lignes d'enroulement des spires de la deuxième bobine (502) de toutes les unités de composition est proche de la direction normale de la ligne magnétique passant par le centre de la section des lignes d'enroulement, et la section entourée par les lignes d'enroulement de la deuxième bobine (502) est approximativement verticale par rapport à la direction normale de la ligne magnétique passant par le centre de la section de la ligne d'enroulement.
  8. La bobine de Rogowski à plusieurs cartes PCBs fermées (500) selon l'affirmation 3, dans laquelle
    Sont fournies deux extrémités de sortie de signal, c'est-à-dire une première extrémité de sortie de signal et une seconde extrémité de sortie de signal, dans lesquelles, dans N PCBs stratifiées, la carte PCB avec la première extrémité de sortie de signal et avec la seconde extrémité de sortie de signal est la 1ère PCB, la PCB adjacente à la 1ère carte est la 2ème carte PCB, jusqu'à ce que la Nème PCB soit présente.
    four external access points are set on the 1st PCB to the (N-1)th PCB, i.e. the first external access point, the second external access point, the third external access point and the fourth external
    quatre points d'accès externes sont définis sur la 1ère carte PCB jusqu'à la (N-1)ème carte PCB, c'est-à-dire le premier point d'accès externe, le deuxième point d'accès externe, le troisième point d'accès externe et le quatrième point d'accès dans lequel le premier point d'accès externe et le troisième point d'accès externe sont le point de départ et le point d'arrivée de la première bobine (501) de la 1ère carte jusqu'à la (N-1) ème carte, du deuxième point d'accès externe et du quatrième d'accès externe point sont les points de départ et d'arrivée de la deuxième bobine (502) de la 1ère carte à la (N-1) ème carte; la Nème carte PCB est dotée de deux points d'accès externes, à savoir le premier point d'accès externe et le deuxième point d'accès externe, le premier point d'accès externe étant le point de départ de la première bobine (501) sur la Nème PCB et le second le point d'accès est le point de départ de la deuxième bobine (502) sur la Nème PCB.
    le premier point d'accès externe sur la 1ère PCB est la première extrémité de sortie du signal et le deuxième point d'accès externe sur la 1ère PCB est la deuxième extrémité de sortie du signal; et
    Le troisième point d'accès externe d'une carte PCB supérieure dans les cartes PCB laminées adjacentes est connecté au premier point d'accès externe d'une carte PCB inférieure pour réaliser une connexion en série entre la première bobine (501) sur la partie supérieure de la carte PCB et la première bobine (501) sur la partie inférieure de la carte PCB pour former une première bobine complete (501); Le quatrième point d'accès externe d'une carte PCB supérieure dans les cartes PCB stratifiées adjacents est connecté au deuxième point d'accès externe dans un carte PCB inférieure pour réaliser une connexion en série entre la seconde bobine (502) sur la carte PCB supérieure et la deuxième bobine (502) sur le carte PCB inférieure pour former une deuxième bobine complète (502); et la première bobine (501) et la seconde bobine (502) sont directement connectées en série sur la Nème carte PCB.
  9. Le troisième point d'accès externe d'une carte PCB supérieure dans les PCB stratifiées adjacents est connecté au premier point d'accès externe d'une PCB inférieure pour réaliser une connexion en série entre la première bobine (501) sur la carte PCB supérieure et la première bobine (501) sur la carte PCB inférieure pour former une première bobine complète (501); le quatrième point d'accès externe d'une carte PCB supérieure dans les cartes PCB adjacentes stratifiées est connecté au deuxième point d'accès externe de la carte PCB inférieure pour réaliser une connexion en série entre la deuxième bobine (502) sur la carte PCB supérieure et la deuxième bobine (502) sur la carte PCB inférieure pour former une seconde bobine complète (502); et la première bobine (501) et la deuxième bobine (502) sont directement connectées en série sur la Nème carte PCB. La bobine de Rogowski avec plusieurs cartes PCBs (500) selon l'affirmation 3 ou 8, dans laquelle
    une unité de composition est composée d'un cycle de rotation de fil sur la première bobine (501) et d'un cycle d'enroulement de fil adjacent d'une deuxième bobine (502) dans chaque PCB, plusieurs unités de composition identiques sont connectées en série, et deux cycles d'enroulement de fils dans l'unité de composition sont étroitement adjacents; ou
    la première ligne entrante et la première ligne sortante de la première bobine (501) dans chaque composition unitaire sont respectivement connectées aux spires de la première bobine (501) sur une composition unitaire supérieure et la ligne d'enroulement inférieure est composée des câblages sur la couche supérieure et la couche inférieure, du premier trou de passage et du deuxième trou de passage entre la couche supérieure et la couche inférieure en les entourant, la deuxième ligne entrante et la deuxième ligne sortante de chaque unité de composition sont respectivement connectées aux spires des deuxièmes bobines (502) sur l'unité de composition supérieure et l'unité de composition inférieure, et la deuxième ligne d'enroulement est composée de spires de la couche supérieure et de la couche inférieure, un troisième trou de passage et un quatrième trou de passage entre la couche supérieure et la couche inférieure en les entourant; ou
    la première ligne entrante à un cycle de spires sur la première bobine (501) de la première unité de composition de la 1ère PCB à la Nème PCB est connectée au premier point d'accès externe de la 1ère PCB à la Nème PCB, la seconde ligne entrante à un cycle de spires sur la deuxième bobine (502) de la première unité de composition de la 1ère jusqu'à la Nème carte PCB est raccordée au deuxième point d'accès externe de la 1ère PCB à la Nème PCB, la première ligne sortante à un cycle de spires de la première bobine (501) de la dernière unité de composition de la 1ère PCB jusqu'à la (N-1)ème PCB est connectée au troisième point d'accès externe de la 1ère PCB à la (N-1)èmPCB , la deuxième ligne sortante à un cycle de spire de la deuxième bobine (502) de la dernière unité de composition de la 1ère PCB à la (N-1)ème PCB est connectée au quatrième point d'accès externe de la 1ère PCB à la (N-1)ème PCB, et la première ligne sortante à un cycle de spires sur la première bobine (501) de la dernière composition de l'unité de la 1ère PCB jusqu'à la (N-1)ème PCB est directement connectée à la deuxième ligne sortante à un cycle de spires la deuxième bobine (502) de la dernière unité de composition sur la Nème PCB, de manière à réaliser la connexion en série de la première bobine (501) et une seconde bobine (502) sur la Nème PCB; ou
    la section composée des lignes de bobinage à deux cycles de spires de chaque unité de composition en l'entourant est verticale à la surface de la carte PCB, la section composée des lignes de bobinage en les entourant est située sur la section transversale de la carte PCB, et les chemins de câblage de les lignes de bobinage se chevauchent dans la direction verticale de la surface De la carte PCB; ou
    les centres des unités de composition sur chaque PCB sont uniformément répartis sur une ligne magnétique de champ magnétique afin de générer le courant à mesurer, la direction de la section entourée par les lignes de l'enroulement à deux cycles de spires des unités de composition est proche de la direction normale de la ligne magnétique passant par le centre de la section de la ligne d'enroulement, et la section entourée par les lignes d'enroulement à deux cycles de spires de toutes les unités de composition est approximativement à la verticale de la direction tangentielle de la ligne magnétique qui traverse la section centre de la ligne d'enroulement.
  10. La bobine de Rogowski ouverte (500) avec deux PCBs, selon l'affirmation 4, dans laquelle
    les deux PCBs sont conçues pour être des PCBs annulaires semi-circulaires, avec plusieurs cycles de spires des première et seconde bobines (502) qui sont enroulées sur les deux PCBs , respectivement; et les deux PCBs à plusieurs cycles de spires sont respectivement dotés de deux points d'accès externes; et
    les deux PCBs sont connectées via un point d'accès externe respectif; et
    les deux autres points d'accès externes de deux PCBs sont considérés comme les extrémités de la sortie des deux PCBs, respectivement.
  11. La bobine de Rogowski ouverte (500) avec deux PCBs selon l'affirmation 4 ou 10, dans laquelle
    une unité de composition est composée d'un cycle de fil d'enroulement de la première bobine (501) et d'un cycle de fil d'enroulement adjacent de la deuxième bobine (502) dans chaque carte PCB de la bobine de Rogowski ouverte avec deux PCBs, plusieurs unités de composition identiques sont connectées en série, et deux cycles de spires dans l'unité de composition sont étroitement adjacents.
    la première ligne entrante et la première ligne sortante de la première bobine (501) dans chaque unité de composition sont respectivement connectées aux spires des premières bobines (501) sur une unité de composition supérieure et une unité de composition inférieure, la première ligne d'enroulement est composée de câblages sur la couche supérieure et la couche inférieure, d'un premier trou de passage et d'un deuxième trou de passage entre la couche supérieure et la couche inférieure les entourant, la deuxième ligne entrante et la deuxième ligne sortante de chaque unité de composition sont respectivement connectées aux spires des deuxièmes bobines (502) sur l'unité de composition supérieure et de composition inférieure, et la deuxième ligne d'enroulement est composée de câblages de la couche supérieure et de la couche inférieure, d'un troisième trou de passage et d'un quatrième trou de passage entre la couche supérieure et la couche inférieure en les entourant.
    La carte PCB avec la première extrémité de sortie du signal est la première carte PCB, la carte PCB avec la deuxième extrémité de sortie du signal est la deuxième carte PCB, la première ligne entrante à un cycle de fil d'enroulement de la première bobine (501) de la première unité de composition sur le la 1ère PCB est connectée au premier point d'accès externe de la 1ère PCB, la deuxième ligne entrante, à un cycle de fil d'enroulement de la deuxième bobine (502) de la première unité de composition sur la 1ère PCB est connectée au deuxième point d'accès externe de la 1ere carte PCB, la première ligne entrante à un cycle de fil d'enroulement de la première bobine (501) de la première unité de composition sur la 2ème carte PCB est connectée au premier point d'accès externe de la 2ème carte PCB, et la deuxième ligne entrante à un cycle de fil d'enrôlement de la deuxième bobine (502) de la première unité de composition sur la 2ème carte PCB est connectée au deuxième point d'accès externe de la 2ème carte PCB.
    la première ligne sortante à un cycle de fil d'enroulement sur la première bobine (501) de la dernière unité de composition sur la 1ère carte PCB est directement connectée à la deuxième ligne sortante à un cycle de fil d'enroulement sur la deuxième bobine (502) de la dernière unité de composition sur la 1ère carte PCB pour réaliser une connexion en série entre la première bobine (501) et la deuxième bobine (502) sur la 1ère carte PCB, et la première ligne sortante à un cycle de fil d'enroulement de la première bobine (501) de la dernière unité de composition sur la 2ème carte PCB est directement connectée à la deuxième ligne sortante à un cycle de fil d'enroulement sur la deuxième bobine (502) de la dernière unité de composition sur la la 2ème carte PCB pour réaliser une connexion en série entre la première bobine (501) et la deuxième bobine (502) sur la 2ème carte PCB.
    la section composée des lignes d'enroulement à deux cycles des spires de chaque unité de composition les entourant est verticale à la surface de la carte PCB, la section composée des lignes d'enroulement les entourant est située sur la section transversale de la carte PCB, et les chemins de câblage des lignes d'enroulement sont superposés dans la direction verticale de la surface de la carte PCB.
    les centres des unités de composition sur chaque circuit imprimé (PCB) sont uniformément répartis sur une ligne magnétique de champ magnétique afin de générer le courant à mesurer, la direction de la section entourée par les lignes d'enroulement suivant deux cycles de spires de toutes les unités de composition est proche la direction normale de la ligne magnétique passant par le centre de la section de la ligne d'enroulement et la section entourée par les lignes d'enroulement à deux cycles de spires de toutes les unités de composition est approximativement à la verticale de la direction tangentielle de la ligne magnétique traversant la ligne magnétique traversant la section de la ligne d'enroulement.
  12. La bobine de Rogowski ouverte (500) avec plusieurs PCBs selon l'affirmation 5, dans laquelle
    le même groupe de PCBs annulaires semi-circulaires est composé de N PCBs en alternative, chaque groupe de PCBs annulaires semi-circulaires est doté de deux extrémités de sortie de signal, c'est-à-dire la première extrémité de la sortie du signal et la seconde extrémité de la sortie du signal, où la carte PCB avec la première extrémité de sortie du signal et la deuxième extrémité de sortie du signal est la 1ère carte PCB, et la carte PCB adjacente à la 1ère carte PCB est la 2ème carte PCB, jusqu'à ce que la Nème carte PCB soit présente; ou
    quatre points d'accès externes sont définis sur la 1ere carte de circuit imprimé (PCB) à la (N-1)ème PCB de chaque groupe de cartes PCB annulaires semi-circulaires, c'est-à-dire, le premier point d'accès externe, le deuxième point d'accès externe, le troisième point d'accès externe et le quatrième point d'accès externe, le premier point d'accès externe et le troisième point d'accès externe constituant le point de départ et le point d'arrivée de la première bobine (501) de la première carte PCB à la (N-1)ème carte PCB, le deuxième point d'accès externe et le quatrième point d'accès externe sont le point de départ et le point d'arrivée de la deuxième bobine (502) de la 1ère carte PCB à la (N-1)ème carte PCB; la Nème PCB dans chaque groupe de PCB annulaires semi-circulaires est dotée de deux points d'accès externes, à savoir le premier point d'accès externe et le second point d'accès externe, le premier point d'accès externe étant le point de départ de la première bobine (501) de la Nème PCB, et le second point d'accès externe est le point de départ de la seconde bobine (502) de la Nème PCB; ou
    le premier point d'accès externe de la 1ère carte PCB dans chaque groupe de cartes PCBs annulaires semi-circulaires est la première extrémité de la sortie du signal, le deuxième point d'accès externe sur la 1ère carte PCB est la deuxième extrémité de la sortie du signal, le troisième point d'accès externe de la carte PCB supérieure dans les cartes PCBs stratifiés adjacents dans chaque groupe de PCBs annulaires semi-circulaires est connecté au premier point d'accès externe sur la carte PCB inférieure pour réaliser la connexion en série entre la première bobine (501) sur la carte PCB supérieure et la première bobine (501) sur la carte PCB inférieure pour former la première bobine complète (501); le quatrième point d'accès de la carte PCB supérieure dans les cartes PCBs stratifiées adjacentes dans chaque groupe de cartes PCBs annulaires semi-circulaires est connecté au deuxième point d'accès externe de la carte PCB inférieure pour réaliser la connexion en série entre la deuxième bobine (502) sur la carte PCB supérieure et la seconde bobine (502) sur la carte PCB inférieure pour former la seconde bobine complète (502); la première bobine (501) et la deuxième bobine (502) sur chaque moitié de la bobine de Rogowski (500) du circuit imprimé sont directement connectées en série sur la Nème PCB pour former un groupe de cartes PCBs annulaires semi-circulaires; ou
    Les extrémités de la première sortie du signal sur deux groupes de PCBs annulaires semi-circulaires sont connectées directement et les extrémités de la deuxième sortie du signal sur celles-ci sont considérées comme deux extrémités de la sortie du signal de la bobine de Rogowski ouverte avec plusieurs PCBs, à savoir l'extrémité de la première sortie du signal et la deuxième extrémité de la sortie du signal
    ou les extrémités de la deuxième sortie du signal sur deux groupes de PCBs annulaires semi-circulaires sont connectées directement, et les extrémités de sortie de la deuxième sortie du signal sur celles-ci sont considérées comme deux extrémités de la sortie du signal de la bobine de Rogowski ouverte avec plusieurs PCBs, à savoir l'extrémité de la première sortie du signal et l'extrémité de la seconde sortie du signal.
  13. La bobine de Rogowski ouverte (500) avec plusieurs PCBs selon l'affirmation 5 ou 12, dans laquelle
    une unité de composition est composée d'un cycle d'enroulement de fil de la première bobine (501) et d'un cycle d'enroulement de fil adjacent de la deuxième bobine (502) dans chaque PCB de la bobine de Rogowski ouverte avec plusieurs PCBs, plusieurs unités de composition identiques sont connectées en série, et deux cycles de spires dans l'unité de composition sont étroitement adjacents; ou
    la première ligne entrante et la première ligne sortante de la première bobine (501) dans chaque unité de composition sont respectivement connectées aux spires des premières bobines (501) sur une unité de composition supérieure et une unité de composition inférieure, la première ligne d'enroulement est composée de câblages sur la couche supérieure et la couche inférieure à travers un premier trou de passage et un deuxième trou de passage entre la couche supérieure et la couche inférieure les entourant, la deuxième ligne entrante et la deuxième ligne sortante de chaque unité de composition sont respectivement connectées aux spires des secondes bobines (502) sur l'unité de composition supérieure et l'unité de composition inférieure, et la seconde ligne d'enroulement est composée de câblages sur la couche supérieure et la couche inférieure, d'un troisième trou de passage et d'un quatrième trou de passage entre la couche supérieure et la couche inférieure les entourant; ou
    la première ligne entrante à un cycle de fil d'enroulement sur la première bobine (501) de la première unité de composition à partir de la 1ère PCB jusqu'à la Nème PCB est connectée au premier point d'accès externe de la 1ère PCB à la Nème PCB, la seconde ligne entrante à un cycle de fil d'enroulement sur la deuxième bobine (502) de la première unité de composition de la 1ère PCB à la Nème carte PCB est raccordée au deuxième point d'accès externe de la 1ère à la Nème PCB, la première ligne sortante à un cycle de fil d'enroulement sur la première bobine (501) de la dernière unité de composition de la 1ère PCB à la (N-1)ème PCB est connectée au troisième point d'accès externe de la 1ère PCB à la N-1)ème PCB , la deuxième ligne sortante à un cycle de fil d'enroulement de la deuxième bobine (502) de la dernière unité de composition de la 1ère PCB à la (N-1)ème PCB est connectée au quatrième point d'accès externe de la 1ère PCB à la (N-1)ème PCB , et la première ligne sortante à un cycle de fil d'enroulement sur la première bobine (501) de la dernière unité de composition sur la Nème PCB est directement connecté à la deuxième ligne sortante à un cycle de fil d'enroulement sur la seconde bobine (502) de la dernière unité de composition sur la Nème PCB, de manière à réaliser la connexion en série de la première bobine (501) et une seconde bobine (502) sur la Nème PCB; ou
    la section composée des lignes d'enroulement à deux cycles de spires de chaque unité de composition les entourant est verticale à la surface de la carte PCB, la section composée des lignes d'enroulement les entourant est située sur la section transversale de la carte PCB et les chemins de câblage sur la couche supérieure et la couche inférieure des lignes de bobinage se chevauchent dans la direction verticale de la surface de la carte PCB; ou
    les centres de chaque unité de composition sont uniformément répartis sur une ligne magnétique de champ magnétique pour générer le courant à mesurer, la direction de la section entourée par les bobinage à deux cycles d'enroulement de toutes les unités de composition est proche de la direction normale de la ligne magnétique passant par le centre de la section de la ligne d'enroulement et la section entourée par les bobinages suivant à deux cycles de tours de fil de toutes les unités de composition est approximativement verticale par rapport à la direction tangentielle de la ligne magnétique passant par le centre de la section du bobinage.
EP14813582.5A 2013-06-18 2014-05-23 Bobine de rogowski de pcb Active EP3012846B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CN201310239226.2A CN104237591B (zh) 2013-06-18 2013-06-18 一种抗磁场干扰单块pcb闭合罗氏线圈设计方法与实现
CN201310289012.6A CN104284515B (zh) 2013-07-11 2013-07-11 一种抗磁场干扰多块pcb闭合罗氏线圈设计方法与实现
CN201310318277.4A CN104349594B (zh) 2013-07-26 2013-07-26 一种抗磁场干扰多块pcb开口罗氏线圈设计方法与实现
CN201310318279.3A CN104349595B (zh) 2013-07-26 2013-07-26 一种抗磁场干扰两块pcb开口罗氏线圈设计方法与实现
PCT/CN2014/078242 WO2014201937A1 (fr) 2013-06-18 2014-05-23 Bobine de rogowski de pcb

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EP3012846A1 EP3012846A1 (fr) 2016-04-27
EP3012846A4 EP3012846A4 (fr) 2017-03-22
EP3012846B1 true EP3012846B1 (fr) 2020-01-08

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US10859605B2 (en) 2016-06-10 2020-12-08 Analog Devices International Unlimited Company Current sensor and a method of manufacturing a current sensor
MX2021000876A (es) 2018-07-25 2021-03-29 Hubbell Inc Dispositivo de interrupción de circuito con bobinas de placa de circuito impreso.
EP4095534A1 (fr) 2021-05-27 2022-11-30 Hitachi Energy Switzerland AG Ensemble semi-conducteur, dispositif d'alimentation électrique et son procédé de fabrication
US11650269B2 (en) 2021-08-25 2023-05-16 Analog Devices International Unlimited Company Split coil arrangement for non-disruptive measurement of axial magnetic flux as part of system to infer machine health
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WO2023174663A1 (fr) * 2022-03-15 2023-09-21 Analog Devices International Unlimited Company Capteur de courant
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EP3012846A1 (fr) 2016-04-27
EP3012846A4 (fr) 2017-03-22
US20160116504A1 (en) 2016-04-28
US10739384B2 (en) 2020-08-11
WO2014201937A1 (fr) 2014-12-24

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